'Horn' in the Bible

And Hannah prayed, and said: My heart exulteth in Jehovah; My horn is exalted in Jehovah; My mouth is enlarged over mine enemies; Because I rejoice in thy salvation.

They that strive with Jehovah shall be broken to pieces; Against them will he thunder in heaven: Jehovah will judge the ends of the earth; And he will give strength unto his king, And exalt the horn of his anointed.

And Jehovah said unto Samuel, How long wilt thou mourn for Saul, seeing I have rejected him from being king over Israel? fill thy horn with oil, and go: I will send thee to Jesse the Beth-lehemite; for I have provided me a king among his sons.

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