'Weaknesses' in the Bible

On behalf of such a person I will boast, but on behalf of myself I will not boast, except in my weaknesses.

And he said to me, "My grace is sufficient for you, because the power is perfected in weakness." Therefore rather I will boast most gladly in my weaknesses, in order that the power of Christ may reside in me.

Therefore I delight in weaknesses, in insults, in calamities, in persecutions and difficulties for the sake of Christ, for whenever I am weak, then I am strong.