2 Corinthians 12:9-10
9. 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 of my weaknesses, so that the power of Christ may rest upon me. 10. For the sake of Christ, then, I am content with weaknesses, insults, hardships, persecutions, and calamities. For when I am weak, then I am strong.

And recall the preceding verses, which we learned yesterday.
2 Corinthians 12:7-8
7. So to keep me from becoming conceited because of the surpassing greatness of the revelations, a thorn was given me in the flesh, a messenger of Satan to harass me, to keep me from becoming conceited. 8. Three times I pleaded with the Lord about this, that it should leave me.

Find that video here: https://www.youtube.com/watch?v=jEDrMwLshTk

This is one of the most important verses to me and in my Christian walk. It reminds me that we are weak, but God is strong. And when we rely on his strength, it becomes our strength. Not only that, but it helps us to accept our weaknesses and that is one of the most powerful ways to grow.