How do we know Jesus satisfies God's justice?

The certainty that Jesus satisfies God's justice lies in both His life and His sacrifice. As stated in Hebrews 10:4, the blood of bulls and goats could not take away sins; instead, it was Christ’s sacrifice, where He fulfilled the law entirely by living a perfect life free from sin. He proclaimed in John 19:30, 'It is finished,' encapsulating His completion of the atoning work required for our redemption. Through His life, death, and resurrection, Jesus accomplished what He had pledged to do in the covenant of grace, thereby securing salvation for all whom the Father gave Him.