2 Corinthians 11:7

Or, did I sin by putting myself down in order to build you people up, because I preached the Gospel of God to you without taking [financial] support?

2 Corinthians 12:13

For in what way were you people inferior to the rest of the churches, unless it was that I was not a [financial] burden to you? Forgive me for this wrong.

Acts 18:1-3

After this happened Paul left Athens and went to Corinth [i.e., a principal city of Greece].

Acts 20:34

You [also] know that I worked with my own hands to provide not only my own needs, but the needs of those who were with me.

1 Corinthians 4:10-12

We are "fools" for Christ's sake, but you people [think you] are "wise" in [the fellowship of] Christ. We are weak, but you people [think you] are "strong." You are honored, but we are despised.

1 Corinthians 9:6

Or, are Barnabas and I the only ones who must have a [secular] job for our living?

1 Corinthians 9:12

If other people have the right to receive a share of what you have, should we not have even more [right to it]? Yet we did not make use of this right, but instead we put up with whatever we had to so we would not become a hindrance to [the spread of] the good news [about Christ].

1 Corinthians 9:14-18

Even so the Lord directed that those who proclaim the good news [about Christ] should get their living from [preaching] that good news.

2 Corinthians 10:1

Now I Paul, who am humble [when speaking] face to face with you, but bold when I am away from you, urge you by the meekness and gentleness of Christ [Note: This means either Paul was imitating Christ's behavior or that the Corinthians were to do so]:

1 Thessalonians 2:9

For you brothers remember how we labored and toiled, working hard night and day, so that we would not burden any of you [while] we proclaimed to you the Gospel of God.

2 Thessalonians 3:8

neither did we eat anyone's food without paying for it. But by hard labor and toil, we worked night and day so as not to be a burden 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
Now I Paul, who am humble [when speaking] face to face with you, but bold when I am away from you, urge you by the meekness and gentleness of Christ [Note: This means either Paul was imitating Christ's behavior or that the Corinthians were to do so]:
2 Corinthians 12:13
For in what way were you people inferior to the rest of the churches, unless it was that I was not a [financial] burden to you? Forgive me for this wrong.
Acts 18:1
After this happened Paul left Athens and went to Corinth [i.e., a principal city of Greece].
Acts 20:34
You [also] know that I worked with my own hands to provide not only my own needs, but the needs of those who were with me.
1 Corinthians 4:10
We are "fools" for Christ's sake, but you people [think you] are "wise" in [the fellowship of] Christ. We are weak, but you people [think you] are "strong." You are honored, but we are despised.
1 Corinthians 9:6
Or, are Barnabas and I the only ones who must have a [secular] job for our living?
1 Thessalonians 2:9
For you brothers remember how we labored and toiled, working hard night and day, so that we would not burden any of you [while] we proclaimed to you the Gospel of God.
2 Thessalonians 3:8
neither did we eat anyone's food without paying for it. But by hard labor and toil, we worked night and day so as not to be a burden to any of you.