1 Corinthians 15:10

10 But by the grace of God I am what I am, and his grace toward me has not been 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 Corinthians 15:10 In-Context

8 Last of all, as to one untimely born, he appeared also to me.
9 For I am the least of the apostles, unfit to be called an apostle, because I persecuted the church of God.
10 But by the grace of God I am what I am, and his grace toward me has not been 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.
11 Whether then it was I or they, so we proclaim and so you have come to believe.
12 Now if Christ is proclaimed as raised from the dead, how can some of you say there is no resurrection of the dead?
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.