God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)
To do something arbitrarily without divine permission; to act on one's own decision rather than considering the needs of others and the purpose of God.
At the all-important pivot of human history, the worst sin ever committed served to show the greatest glory of Christ and obtain the sin-conquering gift of God's grace. God did not just overcome evil at the cross. He made evil commit suicide in doing its worst evil.