JL
The Christian is a part of Christ, a member of His body. His every thought and word and deed proceeds from Christ, as the centre of volition. Thus he loves in the Lord, he hopes in the Lord, he boasts in the Lord, he labours in the Lord … He has one guiding principle in acting and in forbearing to act, μόνον ἐν Κυρίῳ (1 Cor. 7:39).
J. B. Lightfoot, Philippians