You might be asking yourself why such a cruel thing of the crucifixion. Crucifixion was intended to be a gruesome spectacle: the most painful and humiliating death imaginable.
Our own efforts fell short always despite the fact that there were righteous, God-fearing people throughout history, none of them were blameless, and none of them could “stand in the gap” between God and mankind. So then God sent His own Son to carry out this greatest work in history.