make you complete in every good work to do his will, working in you that which is well pleasing in his sight, through Jesus Christ, to whom be the glory forever and ever. Amen.
Verse 21. Make you perfect. The apostle here does not affirm that they were then perfect, or that they would be in this life. The word here used--καταρτιζω-means, to make fully ready, to put in full order; to make complete. The meaning here is, that Paul prayed that God would fully endow them with whatever grace was necessary to do his will and to keep his commandments.
21. To do his will, etc. He now gives a definition of good works by laying down God’s will as the rule; for he thus intimates, that no works are to be deemed good, but such as are agreeable to the will of God, as Paul also teaches us in Romans 12:2, and in many other places.
Make you perfect--properly said of healing a rent; join you together in perfect harmony [BENGEL]. to do his will, working in you-- (Heb 10:36); rather as Greek, "doing in you." Whatever good we do, God does in us. well-pleasing in his sight-- (Isa 53:10; Eph 5:10). through Jesus Christ--"God doing (working) in you that . . . through Jesus Christ" (Phi 1:11). to whom--to Christ.