13. For He was not begotten, as is every man, by intercourse between male and female, but born of the Holy Spirit and of the Virgin; He received a stainless body, which not only no sins polluted, but which neither the generation nor the conception had been stained by any admixture of defilement. For we men are all born under sin, and our very origin is in evil, as we read in the words of David: “For lo, I was conceived in wickedness, and in sin did my mother bring me forth.” Ps. li. [l.] 5. Therefore the flesh of Paul was a body of death, as he himself says: “Who shall deliver me from the body of this death?” Rom. vii. 24. But the flesh of Christ condemned sin, which He felt not at His birth, and crucified by His death, so that in our flesh there might be justification through grace, in which before there had been pollution by guilt.