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Theology Simply Profound

Hosted by Rob McKenzie and Robert Tarullo·50 episodes

Reformed theologyCo-hosted studySerialized teachingScripture walkthroughsEnglishClassic doctrine

Reformed Theological Resources

Why listen

Theology Simply Profound gives Reformed theology a patient, conversational pace, with Rob McKenzie and Robert Tarullo walking through Scripture, doctrine, and classic theological works. It is especially useful for listeners who want Bible study and confessional Protestant teaching without a sermon-only format. The show rewards people who like multi-episode studies, careful explanation, and hosts who sound more like teachers at a table than performers on a stage.

Series(12)

Episodes

Jun 2, 2026
The Book of Daniel, Part 19

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We discuss the vision of the four beasts in chapter 7. Participants: Rob McKenzie, Robert Tarullo

May 19, 2026
The Book of Daniel, Part 18

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel by developing some themes in Daniel with the Book of Revelation. Participants: Rob McKenzie, Robert Tarullo

May 5, 2026
The Book of Daniel, Part 17

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the book of Daniel by discussing chapter 7 and Daniel’s vision of the four beasts. Participants: Rob McKenzie, Robert Tarullo

Apr 14, 2026
The Book of Daniel, Part 16

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. In chapter 6, Daniel continues to face more challenges under the new regime and finds himself in trouble once again. We discuss Daniel in the lions’ den. Participants: Rob McKenzie, Robert Tarullo

Apr 7, 2026
The Book of Daniel, Part 15

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. In chapter 6, Daniel faces more challenges under the new regime and finds himself in hot water once again. We discuss the events leading up to Daniel being thrown into the lion’s den. Participants: Rob McKenzie, Robert Tarullo

Feb 24, 2026
The Book of Daniel, Part 14

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. In chapter 5, we see the handwriting on the wall, Daniel’s interpretation of what is written, and King Belshazzar’s response. Participants: Rob McKenzie, Robert Tarullo

Feb 3, 2026
The Book of Daniel, Part 13

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. In chapter 5, the scene changes from Nebuchadnezzar’s praise and extolling of the King of heaven to a new king, Belshazzar. King Belshazzar does not honor the King of heaven as seen in the desecration of the “golden vessels that had been taken out of the temple, the house of God in Jerusalem.” Participants: Rob McKenzie, Robert Tarullo

Jan 27, 2026
The Book of Daniel, Part 12

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. In chapter 4, we read of the dream given to Nebuchadnezzar wherein a large protective tree bearing much fruit is chopped down, it’s branches lopped off, it’s leaves stripped, and it’s fruit scattered. What’s all this about? Well, Daniel provides yet another interpretation for Nebuchadnezzar. Participants: Rob McKenzie, Robert Tarullo

Dec 24, 2025
We Wish You a Merry Christmas

For our Tenth Annual Christmas Special, Rob and Bob are here to bring you Christmas cheer with our annual Christmas special silliness with a splash of seriousness. More seriously, friends, Merry Christmas and Happy New Year to you. Thank you for listening to Theology Simply Profound. We very much appreciate your ongoing support. Participants: Rob McKenzie, Robert Tarullo

Dec 16, 2025
The Book of Daniel, Part 11

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. In chapter 4, we read of another dream given to Nebuchadnezzar wherein a large protective tree bearing much fruit is chopped down, it’s branches lopped off, it’s leaves stripped, and it’s fruit scattered. What’s all this about? Participants: Rob McKenzie, Robert Tarullo

Nov 18, 2025
The Book of Daniel, Part 10

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. Having discussed the faithfulness of God’s people in the midst of fiery trials in Daniel 3, we take a look at Nebuchadnezzar’s response to that ordeal, he praises God or is it the gods? Participants: Rob McKenzie, Robert Tarullo

Oct 14, 2025
The Book of Daniel, Part 9

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We discuss the faithfulness of God’s people in the midst of fiery trials. In Daniel 3, King Nebuchadnezzar is furious with Shdrach, Meshach, and Abednego for not bowing down to the giant golden statue of the king. Their punishment is to be thrown into a furnace heated 7 times greater than normal. In the face of this death sentence, the three friends of Daniel trust their God no matter what may come. In the midst of it all, the Lord proves faithful even as he is with them in the midst of the fire in the person of the pre-incarnate Son of God. Participants: Rob McKenzie, Robert Tarullo

Oct 7, 2025
The Book of Daniel, Part 8

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We discuss Nebuchadnezzar’s golden statue found in chapter 3:1–8. Participants: Rob McKenzie, Robert Tarullo

Aug 26, 2025
The Teaching of Jesus Concerning the Kingdom of God and the Church – Chapters 10 & 11

This week on Theology Simply Profound, Bob returns to a reading of Geerhardus Vos’s 1903 book, The Teaching of Jesus Concerning the Kingdom of God and the Church. Chapters 10 & 11, “The Entrance Into the Kingdom: Repentance and Faith” and “Recapitulation” Participants: Robert Tarullo

Jul 15, 2025
The Teaching of Jesus Concerning the Kingdom of God and the Church – Chapter 9

This week on Theology Simply Profound, Bob returns to a reading of Geerhardus Vos’s 1903 book, The Teaching of Jesus Concerning the Kingdom of God and the Church. Chapter 9, “The Kingdom and the Church.” Participants: Robert Tarullo

Jul 8, 2025
Understanding Matthew 24

On today’s episode of Theology Simply Profound, Rob takes us on a walk through Matthew 24, the Olivet Discourse. Participants: Rob McKenzie

Jun 24, 2025
The Book of Daniel, Part 7

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We discuss Nebuchadnezzar’s dream and its interpretation by Daniel found in chapter 2:31-45. Participants: Rob McKenzie, Robert Tarullo

Jun 17, 2025
The Book of Daniel, Part 6

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We discuss Nebuchadnezzar’s dream found in Daniel 2:31-49. Participants: Rob McKenzie, Robert Tarullo

Jun 3, 2025
The Book of Daniel, Part 5

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We discuss Nebuchadnezzar’s dream found in Daniel 2:17-24. Participants: Rob McKenzie, Robert Tarullo

May 20, 2025
The Book of Daniel, Part 4

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We see the great challenge Nebuchadnezzar places upon the magicians, enchanters, sorcerers, and Chaldeans of the land by insisting that they reveal his dream to him before the interpretation. What are Daniel and his friends to do? Trust the Lord; he will provide. Participants: Rob McKenzie, Robert Tarullo

May 13, 2025
The Book of Daniel, Part 3

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We see God’s faithfulness to his people in the midst of living in a foreign land under a foreign power as an exiled people. Participants: Rob McKenzie, Robert Tarullo

Apr 29, 2025
The Book of Daniel, Part 2

On today’s episode of Theology Simply Profound, Rob and Bob continue to walk through the Book of Daniel. We God’s faithfulness to his people in the midst of challenging circumstances for God’s people. Participants: Rob McKenzie, Robert Tarullo

Apr 21, 2025
The Book of Daniel, Part 1

On today’s episode of Theology Simply Profound, Rob and Bob begin to walk through the Book of Daniel with some background and introductory thoughts. Participants: Rob McKenzie, Robert Tarullo

Mar 25, 2025
Summary of Christian Doctrine: The Final State

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s, Summary of Christian Doctrine. On today’s episode, under the larger section, “The Doctrine of the Last Things,” we a conclude our discussion of chapter XXX, the last chapter “The Resurrection, the Last Judgement, and the Final State.” Participants: Rob McKenzie, Robert Tarullo

Feb 25, 2025
Summary of Christian Doctrine: The Resurrection

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, under the larger section, “The Doctrine of the Last Things,” we a discussion of chapter XXX, the last chapter “The Resurrection, the Last Judgement, and the Final State.” Participants: Rob McKenzie, Robert Tarullo

Feb 11, 2025
Summary of Christian Doctrine: The Second Coming of Christ, Part 3

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, under the larger section, “The Doctrine of the Last Things,” we continue our discussion of chapter XXIX, “The Second Coming of Christ.” Participants: Rob McKenzie, Robert Tarullo

Jan 28, 2025
Summary of Christian Doctrine: The Second Coming of Christ, Part 2

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, under the larger section, “The Doctrine of the Last Things,” we continue our discussion of chapter XXIX, “The Second Coming of Christ.” Participants: Rob McKenzie, Robert Tarullo

Jan 14, 2025
Summary of Christian Doctrine: The Second Coming of Christ

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, under the larger section, “The Doctrine of the Last Things,” we begin to discuss chapter XXIX, “The Second Coming of Christ.” Participants: Rob McKenzie, Robert Tarullo

Dec 24, 2024
A Very Merry Christmas

For our Ninth Annual Christmas Special, Rob and Bob are here to bring you Christmas cheer with our annual Christmas silliness. This year we talk about the historical Nicholas, Bishop of Myra, otherwise known as St. Nicholas, and how the faithful defender of the faith has been transformed into Santa Claus. Of course, we do this with our traditional laughter and hysterics. More seriously, friends, Merry Christmas and Happy New Year to you. Thank you for listening to Theology Simply Profound. We very much appreciate your ongoing support. Participants: Rob McKenzie, Robert Tarullo

Dec 17, 2024
Summary of Christian Doctrine: Introduction to Living in the Last Days

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, before moving forward in this chapter entitled, “The Doctrine of the Last Things,” we engage with what it means to live in these last days. What are the last days anyway? Participants: Rob McKenzie, Robert Tarullo

Nov 5, 2024
Summary of Christian Doctrine: Physical Death and the Intermediate State, Part 1

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, we come to the last section of the Summary, “The Doctrine of the Last Things.” Rob and Bob begin to a discuss chapter XXVIII, “Physical Death and the Intermediate State.” What is physical death? Why is there death? What is death for believers? Participants: Rob McKenzie

Oct 22, 2024
Summary of Christian Doctrine: The Lord’s Supper, Part 2

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, we continue our discussion of chapter XXVII, “The Lord’s Supper.” We talk about a variety of different matters, including where the body of Christ is currently and where Jesus is during the celebration of the Lord’s Supper. Participants: Rob McKenzie, Robert Tarullo

Oct 15, 2024
Summary of Christian Doctrine: The Lord’s Supper, Part 1

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. On today’s episode, we begin to discuss chapter XXVII, “The Lord’s Supper.” We consider the Lord’s institution of the Supper, the background of the Passover meal, as well as what is meant by the Lord’s Supper being a sign and seal. Participants: Rob McKenzie, Robert Tarullo

Oct 8, 2024
Summary of Christian Doctrine: Christian Baptism, Part 2

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We continue our discussion of chapter XXVI, “Christian Baptism.” In this episode, we continue our discussion of Christian baptism. Participants: Rob McKenzie, Robert Tarullo

Aug 27, 2024
Summary of Christian Doctrine: Christian Baptism, Part 1

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We continue our discussion of chapter XXVI, “Christian Baptism.” In this episode, we begin to discuss the nature and meaning of Christian baptism. Participants: Rob McKenzie, Robert Tarullo

Jul 10, 2024
Summary of Christian Doctrine: The Word of God and the Sacraments in General

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We continue our discussion of chapter XXV, “The Word of God and the Sacraments in General.” In this episode, we mostly talk about the nature of a sacrament as a means of grace. Participants: Rob McKenzie, Robert Tarullo

Jun 18, 2024
Summary of Christian Doctrine: The Word of God and the Sacraments in General

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We begin a discussion of chapter XXV, “The Word of God and the Sacraments in General.” In this episode, we start to talk about the means of grace. Participants: Rob McKenzie, Robert Tarullo

Jun 11, 2024
Summary of Christian Doctrine: The Government and Power of the Church, Part 3

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We continue our discussion of chapter XXIV, “The Government and Power of the Church.” In this episode, we talk about church power. What kind of church power or authority does the church of Jesus Christ have? Participants: Rob McKenzie, Robert Tarullo

May 8, 2024
Summary of Christian Doctrine: The Government and Power of the Church, Part 2

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We continue our discussion of chapter XXIV, “The Government and Power of the Church.” In this episode, we talk about denominations, church as an organization and its structure, and plenty of other odds and ends related to the church. Participants: Rob McKenzie, Robert Tarullo

Apr 30, 2024
Summary of Christian Doctrine: The Government and Power of the Church, Part 1

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We continue our discussion of chapter XXIV, “The Government and Power of the Church.” In this episode, we begin a discussion of church government of Christ’s church beginning with Christ as head of the church and the church officers. Participants: Rob McKenzie, Robert Tarullo

Apr 9, 2024
Summary of Christian Doctrine: The Doctrine of the Church and the Means of Grace

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We continue our discussion of chapter XXIII, “The Doctrine of the Church and the Means of Grace.” In this episode, we get into various aspects of the church: the visible and invisible distinction, church discipline, and others. Participants: Rob McKenzie, Robert Tarullo

Mar 27, 2024
Summary of Christian Doctrine: The Doctrine of the Church and the Means of Grace

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We begin a discussion of chapter XXIII, “The Doctrine of the Church and the Means of Grace.” We’ll spend a few episodes discussing this chapter to dig a little deeper into the nature of the church. Participants: Rob McKenzie, Robert Tarullo

Mar 19, 2024
Summary of Christian Doctrine: Sanctification and Perseverance

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We turn to chapter XXII, “Sanctification and Perseverance.” After too long of a break from recording, Rob and Bob were able to sit down together to discuss God’s work of sanctifying his people, the nature of good works, and how God’s people persevere to the end.  Participants: Rob McKenzie, Robert Tarullo

Feb 14, 2024
Summary of Christian Doctrine: Justification, Part 2

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We turn to chapter XXI, “Justification.” Participants: Rob McKenzie, Robert Tarullo

Jan 31, 2024
Summary of Christian Doctrine: Justification, Part 1

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We turn to chapter XXI, “Justification.” Participants: Rob McKenzie, Robert Tarullo

Dec 23, 2023
Because It’s Christmas

For our Eighth Annual Christmas Special, Rob and Bob are here to bring you Christmas cheer with our annual Christmas silliness. This year we laugh about Christmas delicacies and the weird things we do at this season of the year “. . . because it’s Christmas.” More seriously, friends, Merry Christmas and Happy New Year to you. Thank you for listening to Theology Simply Profound. We very much appreciate your ongoing support. Participants: Rob McKenzie, Robert Tarullo

Dec 13, 2023
Summary of Christian Doctrine: Conversion: Repentance & Faith, Part 2

This week on Theology Simply Profound, Rob and Bob discuss Louis Berkhof’s little book, Summary of Christian Doctrine. We turn to chapter XX, “Conversion: Repentance & Faith.” This week we continue our discussion how Berkhof addresses the doctrine of conversion focusing on faith. Participants: Rob McKenzie, Robert Tarullo

Dec 5, 2023
The Teaching of Jesus Concerning the Kingdom of God and the Church – Chapter 8

This week on Theology Simply Profound, Bob returns to a reading of Geerhardus Vos’s 1903 book, The Teaching of Jesus Concerning the Kingdom of God and the Church. Chapter 8, “The Essence of the Kingdom continued: The Kingdom as a State of Blessedness.” Participants: Robert Tarullo

Nov 1, 2023
What is the Future of Israel? Part 2

This week on Theology Simply Profound, Rob and Bob continue their discussion of the future of Israel? With geopolitical affairs in the Middle East as they are currently and the end times speculations that arise and questions as to how Christians should think of the nation-state of Israel, we discuss the promises regarding the land of Israel, Israel as a nation, the promises to Abraham and his seed, that is Christ, and Romans 11. Participants: Rob McKenzie, Robert Tarullo

Oct 25, 2023
What is the Future of Israel? Part 1

This week on Theology Simply Profound, Rob and Bob discuss the future of Israel? With geopolitical affairs in the Middle East as they are currently and the end times speculations that arise and questions as to how Christians should think of the nation-state of Israel, we consider some history, some dispensational views, and some Reformed views. Participants: Rob McKenzie, Robert Tarullo