Deuteronomy 33:17
His glory is like the firstling of his bullock, and his horns are like the horns of unicorns: with them he shall push the people together to the ends of the earth: and they are the ten thousands of Ephraim, and they are the thousands of Manasseh.
Nave's Topical Index—AKJV

Psalm 22:21
Save me from the lion's mouth: for you have heard me from the horns of the unicorns.
Nave's Topical Index—AKJV

Psalm 92:10
But my horn shall you exalt like the horn of an unicorn: I shall be anointed with fresh oil.
Nave's Topical Index—AKJV