I can do all things through Christ which strengtheneth me.
I can do (I have strength for) all things, х panta (G3956) ischuoo (G2480)] - not merely 'how to be abased and how to abound.' After special instances, he declares his universal power, yet taking no glory to himself. How omnipotent is Christ, who makes His disciples omnipotent in Him!
Through Christ (so C, Origen) which strengtheneth me, ['Aleph (') A B Delta f, Vulgate, omit "Christ"] - 'in Him who giveth me power' [endunamounti me]. IN living union and identification with Him, my power (Galatians 2:20). Compare 1 Timothy 1:12, whence probably "Christ" was inserted here by transcribers (2 Timothy 4:17).