1 Corinthians 15:10—“But by the grace of God I am what I am; and His grace unto me did not turn out to be in vain, but, on the contrary, I labored more abundantly than all of them, yet not I but the grace of God which is with me.”
Note 2 on not I says: “Not I but the grace of God equals no longer I…but…Christ in Gal. 2:20. The grace that motivated the apostle and operated in him was not some matter or some thing but a living person, the resurrected Christ, the embodiment of God the Father who became the all-inclusive life-giving Spirit, who dwelt in the apostle as his everything.”
Cross-reference “a” on grace directs us to these verses:
Romans 12:3: For I say, through the grace given to me, to everyone who is among you, not to think more highly of himself than he ought to think, but to think so as to be sober-minded, as God has apportioned to each a measure of faith.
1 Corinthians 3:10: According to the grace of God given to me, as a wise master builder I have laid a foundation, and another builds upon it. But let each man take heed how he builds upon it.