4 Who then frees from death and from bondage, save He, who is “Free among the dead”? Who is “Free among the dead,” save He who among sinners is without sin? “Lo, the prince of the world comes,” says our Redeemer Himself, our Deliverer, “Lo, the prince of the world comes, and shall find nothing in Me.” He holds fast those whom he has deceived, whom he has seduced, whom he has persuaded to sin and death; “in Me shall he find nothing.” Come, Lord, Redeemer come, come; let the captive acknowledge you, him that leads captive flee you; be my Deliverer.
Lost as I was, He has found me in Whom the devil finds nothing that comes of the flesh. The prince of this world finds in Him Flesh, he finds it but what kind of Flesh? A mortal Flesh, which he can seize, which he can crucify, which he can kill. You are mistaken, O deceiver, the Redeemer is not deceived; you are mistaken. You see in the Lord a mortal Flesh, it is not flesh of sin, it is the likeness of flesh of sin. “For God sent His Son in the likeness of flesh of sin.” True Flesh, mortal Flesh; but not flesh of sin.
“For God sent His Son in the likeness of flesh of sin, that by sin He might condemn sin in the Flesh.” “For God sent His Son in the likeness of flesh of sin;” in Flesh, but not in flesh of sin; but “in the likeness of flesh of sin.” For what purpose? “That by sin,” of which assuredly there was none in Him, “He might condemn sin in the flesh; that the righteousness of the Law might be fulfilled in us, who walk not after the flesh, but after the Spirit.”
Source: Sermons on Selected Lessons of the New Testament (New Advent)