1 Tesalonika 2:10-12

2:10 You are witnesses, and so is God, as to how holy and righteous and blameless our conduct was toward you who believe. 2:11 As you know, we treated each one of you as a father treats his own children, 2:12 exhorting and encouraging you and insisting that you live in a way worthy of God who calls you to his own kingdom and his glory.