I worked harder than any of them

10 But by the grace of God I am what I am, and his grace toward me was not in vain. On the contrary, I worked harder than any of them, though it was not I, but the grace of God that is with me.

1 Cor. 15:10 grace of God. Paul considered his conversion from “persecutor” to “apostle to the Gentiles” to be a free and wholly undeserved gift of God (Rom. 15:15–16; Gal. 1:15; 2:9; Eph. 3:7–8; Phil. 1:9; 1 Tim. 1:14). God's grace did not lead to passivity, however, for it prompted hard work on Paul's part.