1 Thessalonians 2:9-10

9For you recall, brethren, our 1labor and hardship, how 2working night and day so as not to be a 3burden to any of you, we proclaimed to you the 4gospel of God.

10You are witnesses, and so is 5God, 6how devoutly and uprightly and blamelessly we 7behaved toward you 8believers;