“The seriousness of an insult rises with the dignity of the one insulted. Since our sin is against the Ruler of the Universe, “the wages of [our] sin is death” (Romans 6:23). Not to punish it would be unjust. So God sent his own Son, Jesus, to divert sin’s punishment from us to himself. God “loved us and sent his Son to be the propitiation”—the wrath-absorbing substitute—“for our sins” (1 John 4:10).” – John Piper

Source: https://www.crossway.org/articles/10-reasons-jesus-came-to-die/