2 Corinthians 13:3

13:3 since you are demanding proof that Christ is speaking through me. He is not weak toward you but is powerful among you.

2 Corinthians 10:4

10:4 for the weapons of our warfare are not human weapons, but are made powerful by God for tearing down strongholds. We tear down arguments

2 Corinthians 10:10

10:10 because some say, “His letters are weighty and forceful, but his physical presence is weak and his speech is of no account.”

2 Corinthians 6:18

6:18 and I will be a father to you, and you will be my sons and daughters,” says the All-Powerful Lord.

2 Corinthians 12:12

12:12 Indeed, the signs of an apostle were performed among you with great perseverance by signs and wonders and powerful deeds.

2 Corinthians 12:10

12:10 Therefore I am content with weaknesses, with insults, with troubles, with persecutions and difficulties for the sake of Christ, for whenever I am weak, then I am strong.