'Horns' in the Bible

“On that day when I punish Israel’s transgressions,I shall also punish the altars of Bethel [with their golden calves];And the horns of the altar shall be cut offAnd fall to the ground.

You who [self-confidently] rejoice in Lo-debar (Nothing),Who say, “Have we not by our own strength taken Karnaim (Strength) for ourselves?”