I Thessalonians 2:5-6, 11

For neither at any time did we use flattering words, as you know, nor a cloak for covetousness—God is witness. Nor did we seek glory from men, either from you or from others, when we might have made demands as apostles of Christ.

as you know how we exhorted, and comforted, and charged every one of you, as a father does his own children