1 Corinthians 16:2
On the first day of every week each of you must put aside and store up something in proportion as he is prospered, so that no contributions need be made when I come back.
2 Corinthians 8:10
Now I will give you my opinion on this matter. For this is for your interest, because you were not only the first to do anything about it, but the first to want to do so; you started it a year ago.
2 Corinthians 8:12
If a man is ready and willing to give, his gift is acceptable in accordance with what he has, not with what he does not have.
2 Corinthians 9:5-11
So I have thought it necessary to urge these brothers to visit you ahead of me and get your promised love-offering ready beforehand, so as to have it ready as a real love-offering, not as one grasped and grudgingly given.