How do we know Jesus is sinless?

The assertion of Jesus’ sinlessness is critical to Christian faith, underscoring His ability to be the perfect sacrifice for sin. Scripture supports this claim, stating that He was 'made in all points like unto His brethren, sin accepted.' This means while He was fully human, He did not partake in Adam's sin nature. His sinlessness is essential not only for His resurrection but also for His role as the Lamb of God who takes away the sins of the world, fulfilling the sacrificial system outlined in the Old Testament.