How do we know Jesus was free from sin?

In the sermon, it is stated that Jesus was free from both original sin and all personal transgressions of God's law. This is significant because He is called to be our substitute through His perfect obedience. Scriptures like Matthew 1:21–23 and 2 Corinthians 5:21 highlight that Jesus, born of a woman, was without sin, allowing Him to redeem sinful humanity. His sinlessness is crucial for His role as the perfect Lamb of God, who takes away the sins of the world. This truth reassures believers of the sufficiency of His sacrifice on their behalf.