Yet it was not I but God who was working through me by His grace” (1 Corinthians 15:10)
Paul had learned that if he was going to brag, it would be about his weakness—for it was in the middle of humanly unsolvable problems, and even in the middle of his own unanswered prayers, that he heard the Lord say, “My grace is all you need. My power works best in weakness” (2 Corinthians 12:9). Grace teaches us to say, “If you want to boast, boast only about the Lord” (2 Corinthians 10:17).
As Paul reminds us, this is the grace that we discover only as we “count as loss” anything that would tempt us to put our confidence in ourselves rather than in Christ—in what He has done for us, and in what He, in His grace, wants to do in and through us today.