2 Corinthians 11:7

The sin did I do -- myself humbling that ye might be exalted, because freely the good news of God I did proclaim to you?

2 Corinthians 12:13

for what is there in which ye were inferior to the rest of the assemblies, except that I myself was not a burden to you? forgive me this injustice!

Acts 18:1-3

And after these things, Paul having departed out of Athens, came to Corinth,

Acts 20:34

and ye yourselves know that to my necessities, and to those who were with me, minister did these hands;

1 Corinthians 4:10-12

we are fools because of Christ, and ye wise in Christ; we are ailing, and ye strong; ye glorious, and we dishonoured;

1 Corinthians 9:6

or only I and Barnabas, have we not authority -- not to work?

1 Corinthians 9:12

if others do partake of the authority over you -- not we more? but we did not use this authority, but all things we bear, that we may give no hindrance to the good news of the Christ.

1 Corinthians 9:14-18

so also did the Lord direct to those proclaiming the good news: of the good news to live.

2 Corinthians 10:1

And I, Paul, myself, do call upon you -- through the meekness and gentleness of the Christ -- who in presence, indeed am humble among you, and being absent, have courage toward you,

1 Thessalonians 2:9

for ye remember, brethren, our labour and travail, for, night and day working not to be a burden upon any of you, we did preach to you the good news of God;

2 Thessalonians 3:8

nor for nought did we eat bread of any one, but in labour and in travail, night and day working, not to be chargeable to any of you;

Treasury of Scripture Knowledge

Summary

Have I committed an offence in abasing myself that ye might be exalted, because I have preached to you the gospel of God freely?

Bible References

In

2 Corinthians 10:1
And I, Paul, myself, do call upon you -- through the meekness and gentleness of the Christ -- who in presence, indeed am humble among you, and being absent, have courage toward you,
2 Corinthians 12:13
for what is there in which ye were inferior to the rest of the assemblies, except that I myself was not a burden to you? forgive me this injustice!
Acts 18:1
And after these things, Paul having departed out of Athens, came to Corinth,
Acts 20:34
and ye yourselves know that to my necessities, and to those who were with me, minister did these hands;
1 Corinthians 4:10
we are fools because of Christ, and ye wise in Christ; we are ailing, and ye strong; ye glorious, and we dishonoured;
1 Corinthians 9:6
or only I and Barnabas, have we not authority -- not to work?
1 Thessalonians 2:9
for ye remember, brethren, our labour and travail, for, night and day working not to be a burden upon any of you, we did preach to you the good news of God;
2 Thessalonians 3:8
nor for nought did we eat bread of any one, but in labour and in travail, night and day working, not to be chargeable to any of you;