John Chrysostom, on Heb 13:20

“And may the God of peace, who brought again from the dead the great pastor of the sheep, our Lord Jesus Christ, in the blood of the everlasting testament,”

“Therefore having first asked their prayers, he then himself also prays for all good things on them. "Now the God of peace," he says (be ye not therefore at variance one with another), "that brought again from the earth the Shepherd of the sheep" (this is said concerning the resurrection) "the Great Shepherd" (another addition: here again he confirms to them even to the end, his discourse concerning the Resurrection) "through the blood of the everlasting covenant, our Lord Jesus Christ," "make you perfect in every good work, to do His will, working in you that which is well-pleasing in His sight." Again he bears high testimony to them. For that is made "perfect" which having a beginning is afterwards completed. And he prays for them which is the act of one who yearns for them. And while in the other Epistles, he prays in the prefaces, here he does it at the end. "Working in you," he says, "that which is well-pleasing in His sight through Jesus Christ, to whom be glory for ever and ever. Amen." Seest thou how he shows that virtue is born neither wholly from God, nor yet from ourselves alone? First by saying, "make you perfect in every good work"; Ye have virtue indeed, he means, but need to be made complete. What is "good work and word"? So as to have both life and doctrines right. "According to His will, working in you that which is well-pleasing in His sight." "In His sight," he says. For this is the highest virtue, to do that which is well-pleasing in the sight of God, as the Prophet also says, "And according to the cleanness of my hands in His eye-sight." (Ps. xviii. 24.)”

Imported from an open dataset — not yet checked against the printed edition.