How do we know that Jesus' sacrifice has put away sin?

We know Jesus' sacrifice has put away sin because it fulfilled what the Old Testament sacrifices could never accomplish. All those animal sacrifices were mere types and shadows, symbolizing the need for a greater sacrifice. Hebrews 10:4 states, 'for it is not possible that the blood of bulls and goats should take away sins.' In contrast, Jesus bore the sins of many and through His death, He fully satisfied the penalty for sin. This was evidenced by His resurrection, demonstrating that He defeated sin and death. Thus, His sacrifice not only covered sin but removed it entirely for those who believe.