2 Corinthians 12:13
For what is there wherein ye have been inferior to the other churches, except that I have not been burdensome to you? Forgive me this wrong.
1 Corinthians 9:12
if others partake of this power over you, ought not we much more? But we have not used this power, and we suffer all things, that we might not put any obstruction in the way of the gospel of Christ.
2 Corinthians 12:14
Lo! I hold myself ready the third time to come unto you, and I will not burden you; for I seek not yours but you: for the children ought not to lay up treasure for their parents, but the parents for the children.
1 Corinthians 9:6
or I alone and Barnabas, have we not power to forbear labour?
1 Corinthians 9:15-18
But I have used nothing of these things, nor have I written indeed these things, that it should be so done respecting me; for it would become me to die rather than that any man should make my glorying void.
2 Corinthians 11:7-9
Am I chargeable with a fault (humbling myself that you might be exalted), that I preached to you the gospel of God freely?