1 Kings 19:15 - Ellicott's Commentary On The Whole Bible

Go, return. — The charge conveys indirectly a double rebuke. His cry of disappointment, “Lord... I am not better than my fathers,” implying that he stood out beyond all others, to meet the stern requirements of the time, is met by the charge to delegate the task of vengeance for God to others; the complaint, “I, even I alone, am left,” by the revelation of the faithful remnant — the seven thousand who had not bowed to Baal — unknown to him, perhaps to one another, but known and loved by God.