'Horn' in the Bible

Then Joab blew the ram's horn and all the people stopped in their tracks. They stopped chasing Israel and ceased fighting.

Then Absalom sent spies through all the tribes of Israel who said, "When you hear the sound of the horn, you may assume that Absalom rules in Hebron."

My God is my rocky summit where I take shelter, my shield, the horn that saves me, my stronghold, my refuge, my savior. You save me from violence!