'Horn' in the Bible

And when he came there, he had a horn sounded in the hill-country of Ephraim, and all the children of Israel went down with him from the hill-country, and he at their head.

But the spirit of the Lord came on Gideon; and at the sound of his horn all Abiezer came together after him.

Then separating the three hundred men into three bands, he gave every man a horn, and a vessel in which was a flaming branch.

At the sound of my horn, and the horns of those who are with me, let your horns be sounded all round the tents, and say, For the Lord and for Gideon.