1 Thessalonians 2:3-5

3So you can see we were not preaching with any deceit or impure motives or trickery.

4For we speak as messengers approved by God to be entrusted with the Good News. Our purpose is to please God, not people. He alone examines the motives of our hearts.

5Never once did we try to win you with flattery, as you well know. And God is our witness that we were not pretending to be your friends just to get your money!