Why Unbelief—Not Sin—is the Real Issue

Jun 28, 2026    Pastor John Medeiros, Samantha McLaughlin Medeiros

In this study of John 8, we examine one of the most astonishing declarations ever made by the Lord Jesus Christ: "Before Abraham was born, I AM." (John 8:58)


Why did those words cause the religious leaders to pick up stones to kill Him?


What did Jesus mean when He called Himself "I AM"—the very name God revealed to Moses in Exodus 3:14?


And how did the Cross become the greatest confirmation that Jesus Christ is exactly who He claimed to be?


In this message, we also uncover the powerful distinction between "sin" (singular) and "sins" (plural) in John 8, revealing why personal sins are not the issue in salvation. The Cross settled the sin problem once and for all. The remaining issue is the Son: What do you believe about Jesus Christ?


Discover why:

Jesus' claim to be the Great I AM was a direct declaration of His deity.

The Cross did not disprove His Messiahship—it forever confirmed it.

Salvation is by grace alone through faith alone in Christ alone, not by works, religious rituals, or human effort.

The believer possesses eternal security because Christ completely accomplished the Father's plan of redemption.


This study also begins our examination of the Mount of Transfiguration, where Moses and Elijah speak with our Lord about the greater Exodus He would accomplish at Jerusalem through the Cross—a beautiful picture of mankind's ultimate deliverance from the bondage of sin.


Key Scriptures:

• John 8:21–59

• Exodus 3:14

• John 3:14; 3:18

• Romans 4:5

• Ephesians 2:8–9

• 2 Corinthians 5:19–21

• 1 John 2:2

• Luke 9:28–31

• Galatians 2:20


The Cross settled the sin problem. Faith settles the Son problem.

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