Romans 11:3

See 1 Kings 19:10,14. Digged down thine altars: these were not the altars of the high places, for they are commended that cast them down; nor the altars in the temple at Jerusalem, for they were out of the reach of the ten tribes, against whom Elias complains: but such altars (say some) as the godly of the ten tribes did build to serve God with, when they were not permitted to go up to Jerusalem; in which case the building of private altars (as some learned Jews have affirmed) was allowed. Or else by altars you may understand such altars as Elias himself, by the special commandment of God, had erected. Others, by digging down God's altars, do understand their corrupting and destroying the true worship of God; and the words are to be taken synecdochically, or metonomically, the sign being put for the thing signified. I am left alone; so it was, for aught he knew; for few, if any, did publicly own the true worship of God: so general was the defection of the ten tribes in those days.