Charles Ellicott Commentary Colossians 1:29

"whereunto I labor also, striving according to his working, which worketh in me mightily." — Colossians 1:29 (ASV)

To this end I also labour.—In this verse St. Paul passes from the plural to the singular, evidently in preparation for the strong personal remonstrance of Colossians 2:1-7.

His working . . .—See Ephesians 1:12, and Note there. Perhaps, as in Galatians 2:8 (He that wrought effectually in Peter to the Apostleship of the Circumcision, the same was mighty in me towards the Gentiles), there is special allusion to the grace given to him for his Apostleship of the Gentiles.