Why was Jesus bound to the law? God's holiness requires punishment for sin; Jesus satisfies both justice and mercy

God is holy and must punish sin to remain just; yet God loves and desires to save. In Christ, both are satisfied simultaneously: sin is punished in Jesus, and the sinner is saved. Winger alludes to Psalm passage: "mercy and peace have kissed" — the contrast of justice and grace meet at the cross. God's plan was sovereign; it is at least possible (and likely) that no other way was consistent with his holy nature.