“The Lord is a jealous and avenging God… He is furious with His enemies. The Lord is slow to anger but great in power; the Lord will never leave the guilty unpunished.”
And this truth about our God is the reason Jesus is crucified on a cross. God is unwilling to leave the guilty unpunished. He desires to quench His thirst for retribution and justice against the evildoer.
And who is the evildoer? You, me, your neighbor, my neighbor, my child, your child, my parents, your parents, my brother, your brother, my coworkers, your coworkers. And how is it that seemingly good people are called evildoers? Because we fall so short of God, so far from the perfection He expects. In short, we are sinners. Paul reminds us, “For all have sinned and fall short of the glory of God.” (Romans 3:23)
Yet, God provides the way out of darkness. John tells us: “For God so loved the world in this way: He gave His One and Only Son, so that everyone who believes in Him will not perish but have eternal life. For God did not send His Son into the world that He might condemn the world but that the world might be saved through Him. Anyone who believes in Him is not condemned, but anyone who does not believe is ALREADY condemned, because he has not believed in the Name of the One and Only Son of God.” (John 3: 16-18)
“While we were still enemies, we were reconciled to God.” (Romans 5:10)
God — who leaves no one unpunished — nevertheless, saves us through His One and Only Son. When Jesus is crucified, He receives the severe punishment for our sin. At the point of Jesus’ death, God’s wrath is satisfied. Jesus says, “It is accomplished.”