Numbers 10:2
King James Version
“Make thee two trumpets of silver; of a whole piece shalt thou make them: that thou mayest use them for the calling of the assembly, and for the journeying of the camps.”
Context
1And the LORD spake unto Moses, saying,
2Make thee two trumpets of silver; of a whole piece shalt thou make them: that thou mayest use them for the calling of the assembly, and for the journeying of the camps.
3And when they shall blow with them, all the assembly shall assemble themselves to thee at the door of the tabernacle of the congregation.
4And if they blow with one then the princes, heads of the thousands of Israel, shall gather themselves unto thee.
5When ye blow an alarm, then the camps that lie on the east parts shall go forward.