Numbers 10:1-3

King James Version

10 And the Lord spake unto Moses, saying,

² 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.

³ And when they shall blow with them, all the assembly shall assemble themselves to thee at the door of the tabernacle of the congregation.