Commentaries:
Adam Clarke
Know we no man after the flesh - As we know that all have sinned and come short of the glory of God; and as we know that all are alienated from God, and are dead in trespasses and sins; therefore we esteem no man on account of his family relations, or the stock whence he proceeded, because we see all are shut up in unbelief, and all are children of wrath.
Yea, though we have known Christ after the flesh - We cannot esteem a man who is a sinner, were he even allied to the blood royal of David, and were he of the same family with the man Christ himself; nor can we prize a man because he has seen Christ in the flesh; for many have seen him in the flesh to whom he will say; Depart from me, for I never knew you. So we: nothing weighs with us, nor in the sight of God, but redemption from this death, and living to him who died for them.
We know that the Jews valued themselves much in having Abraham for their father; and some of the Judaizing teachers at Corinth might value themselves in having seen Christ in the flesh, which certainly St. Paul did not; hence he takes occasion to say here that this kind of privilege availed nothing; for the old creature, however noble, or well descended in the sight of men, is under the curse; and the new creature only is such as God can approve.
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