2 Corinthians 8:2

8:2 that during a severe ordeal of suffering, their abundant joy and their extreme poverty have overflowed in the wealth of their generosity.

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 9:13

9:13 Through the evidence of this service they will glorify God because of your obedience to your confession in the gospel of Christ and the generosity of your sharing with them and with everyone.