1 Thessalonians 1:3

1:3 because we recall in the presence of our God and Father your work of faith and labor of love and endurance of hope in our Lord Jesus Christ.

1 Thessalonians 2:13

2:13 And so we too constantly thank God that when you received God’s message that you heard from us, you accepted it not as a human message, but as it truly is, God’s message, which is at work among you who believe.