1CO 15:10

10 But by the grace of God I am that thing that I am; and his grace was not void in me. For I travailed more plenteously than all they; but not I, but the grace of God with me. (But by the grace of God I am what I am; and his grace was not given to me in vain. For I worked harder than all of them; but not me really, but the grace of God working through me.)