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Mark 1:4

How the Cross Forgives Sins Across Time

The question of how John the Baptist's baptism could bring forgiveness of sins (Mark 1:4) before Jesus' crucifixion often puzzles readers. Since Scripture teaches that forgiveness depends on the atoning death of Christ, how could sins be forgiven before that event took place?

The answer lies in the eternal and timeless nature of Christ's sacrifice. Although the crucifixion happened at a specific moment in history, its redemptive power transcends time. In Romans 3:25-26, Paul explains that God "passed over the sins previously committed" in His forbearance–not because they were ignored, but because they were ultimately paid for by Christ. The cross was the basis for forgiveness both before and after it happened.

John's baptism was not identical to Christian baptism, but it was a preparatory, covenantal act rooted in repentance. Like Old Testament sacrifices, it was part of a system that pointed forward to Jesus. Those who responded in faith and repentance under John's ministry were forgiven on the credit of what Christ would accomplish at Calvary.

Similarly, believers today receive forgiveness by looking backward to the same cross. In Acts 2:38, Peter commands repentance and baptism for the forgiveness of sins–now based on a completed atonement.

Practical Application: This teaching reminds us that salvation has always been by grace through faith. Whether in Abraham's day, John's ministry, or the present age, forgiveness rests not on rituals or timing, but on God's promise fulfilled in Jesus. Believers today can take comfort knowing that their forgiveness is anchored in an unchanging sacrifice. And it calls us to trust God fully, even when we don't see how His promises will be fulfilled in our moment of time–just as those before the cross did.

God's grace is not bound by time, and neither is His power to forgive.

Discussion Questions
  1. How does Romans 3:25-26 help explain God's justice in forgiving sins committed before the cross?
  2. What is the difference between John's baptism and Christian baptism?
  3. How does understanding the timeless nature of the cross strengthen your faith today?
Sources
  • Bible Version: New American Standard Bible (NASB 1995)
  • ChatGPT (OpenAI) – Chat titled 'Mark 1:4 Explanation'
  • Romans 3:25-26 – Paul's explanation of atonement across time
  • Hebrews 9:15 – Christ's death redeems past covenant sins
  • Acts 2:38 – The call to baptism and forgiveness post-cross
3.
Evil Spirits
Mark 1:23-26, 32-34