The NIV 365-Day Devotional Reading PlanExemple

I can do all this. Paul uses a Gr. verb that means “to be strong” or “to have strength” (cf. Ac 19:16, 20; Jas 5:16). He had strength to withstand “all this” (vv. 11, 12), including both difficulty and prosperity in the material world. through him who gives me strength. The Gr. word for “gives strength” means “to put power in.” Because believers are in Christ (Gal 2:20), He infuses them with His strength to sustain them until they receive some provision (Eph 3:16– 20; 2Co 12:10).

Taken from NIV The MacArthur Study Bible