Yahweh said to Joshua, Behold, I have given into your hand Jericho, and the king of it, and the mighty men of valor.
The ASV and many other recent versions have mistranslated the words here given as "rams' horns."  "There is no mention of rams' horns in the original Hebrew."[19]  The horns used were the jubilee trumpets, long metal devices that were also used in the Feast of Trumpets.  "The word from which trumpets comes here means loud trumpets or trumpets of jubilee, and is the same word found in  Leviticus 25:9."[20]