Christ’s power is made perfect in my weakness, not in my best effort.
But he said to me, “My grace is sufficient for you, for my power is made perfect in weakness.” Therefore I will boast all the more gladly about my weaknesses, so that Christ’s power may rest on me. That is why, for Christ’s sake, I delight in weaknesses, in insults, in hardships, in persecutions, in difficulties. For when I am weak, then I am strong. (2 Corinthians 12:9-10.)
This doesn’t mean I can get away with never making an effort. The Bible is clear that there is much for God’s people to do.
But our efforts are not where God’s strength is perfected – that is, where it is brought to full completion in our lives. By his grace the strength he brings is found in our weakness. This truly is a gift of grace because there are times I’m not really putting in my best effort. That’s part of my weakness, too.
I am glad God is not looking for me to muster up my best efforts before he accomplishes things through me but uses my weaknesses – including my weak efforts – to accomplish his perfect purposes. In fact, sometimes my best of efforts get in the way.
Yes, I hope to keep trying my best for him. But I put even more hope in his grace to bring his strength through every weakness in me to accomplish his purposes.