THE HOLY BIBLE Authorized King James

Psalms (Author Moses, David, Solomon, Asaph, Heman, Ethan, sons of Korah, compiled by Ezra)

18:2The LORD is my rock, and my fortress, and my deliverer; my God, my strength, in whom I will trust; my buckler, and the horn of my salvation, and my high tower.

Luke (Author Luke)

1:69And hath raised up an horn of salvation for us in the house of his servant David;

Original from The Bible Foundation - They claim public domain status for their original text.