Saint Anselm

“ Decide for yourself if it be not contrary to the honor of God for man to be reconciled to Him, with this calumnious reproach still heaped upon God; unless man first shall have honored God by overcoming the devil, as he dishonored him in yielding to the devil. Now the victory ought to be of this kind, that, as in strength and immortal vigor, he freely yielded to the devil to sin, and on this account justly incurred the penalty of death; so, in his weakness and mortality, which he had brought upon himself, he should conquer the devil by the pain of death, while wholly avoiding sin. ”