"We all, like sheep, have gone astray, each of us has turned to his own way; and the LORD has laid on him the iniquity of us all" (Isa. 53:6). Commenting on this verse Martin Luther wrote: "All the prophets did foresee in Spirit that Christ should become the greatest transgressor, murderer, adulterer, thief, rebel, blasphemer, etc., that ever was or could be in all the world. For he, being made a sacrifice for the sins of the whole world is not now an innocent person and without sins...but a sinner." He was, of course, talking about the imputing of our wrongdoing to Christ as our substitute.

Luther continues: "Our most merciful Father...sent his only Son into the world and laid upon him...the sins of all men saying: Be thou Peter that denier; Paul that persecutor, blasphemer and cruel oppressor; David that adulterer; that sinner which did eat the apple in Paradise; that thief which hanged upon the cross; and briefly be thou the person which hath committed the sins of all men; see therefore that thou pay and satisfy for them. Here now comes the law and saith: I find him a sinner...therefore let him die upon the cross. And so he setteth upon him and killeth him. By this means the whole world is purged and cleansed from all sins."

The presentation of the death of Christ as the substitute exhibits the love of the cross more richly, fully, gloriously, and glowingly than any other account of it. Luther saw this and gloried in it. He once wrote to a friend: "Learn to know Christ and him crucified. Learn to sing to him, and say, 'Lord Jesus, you are my righteousness, I am your sin. You have taken upon yourself what is mine and given me what is yours. You became what you were not, so that I might become what I was not.'"  What a great and wonderful exchange! Was there ever such love?