'Horn' in the Bible

Hannah prayed, and said: "My heart exults in Yahweh! My horn is exalted in Yahweh. My mouth is enlarged over my enemies, because I rejoice in your salvation.

Those who strive with Yahweh shall be broken to pieces. He will thunder against them in the sky. "Yahweh will judge the ends of the earth. He will give strength to his king, and exalt the horn of his anointed."

Yahweh said to Samuel, "How long will you mourn for Saul, since I have rejected him from being king over Israel? Fill your horn with oil, and go. I will send you to Jesse the Bethlehemite; for I have provided a king for myself among his sons."

Then Samuel took the horn of oil, and anointed him in the midst of his brothers: and the Spirit of Yahweh came mightily on David from that day forward. So Samuel rose up, and went to Ramah.