Romans 2:4-5 — What is repentance? In the sermon from Romans 2:4-5 titled “The Heart and Mind of Man”, Dr. Martyn Lloyd-Jones explains what it means to think again or changing one’s mind, both of which involve a direct action. Paul is preaching to a people who have completely forgotten the goodness of God that should lead to repentance. The first step to repent involves a completely changed attitude about God in submission of the heart and mind. The heart is the wellspring of sin that must be changed on the inside first and then the outside actions will follow. Dr. Lloyd-Jones explains that sin completely blinds and hearts are hardened by the deceitfulness of sin. This passage also warns that those who have a hardened and impenetrable heart are storing up wrath for themselves. But once they are saved, they can rest that the Lord who started a good work in them will continue to do so until the day He returns. That day will reveal who was repentant and who was pretending and storing up wrath.