Numbers 10:2-11

²Make thee two trumpets of silver; of beaten work shalt thou make them; and they shall serve for the calling together of the assembly, and for the journeying of the camps.

³And when they shall blow with them, the whole assembly shall gather to thee at the entrance of the tent of meeting.

⁴And if they blow with one, then the princes, the heads of the thousands of Israel, shall gather unto thee.

⁵And when ye blow an alarm, the camps that lie eastward shall set forward.

⁶And when ye blow an alarm the second time, the camps that lie southward shall set forward; they shall blow an alarm on their setting forward.

⁷And when the congregation is to be gathered together, ye shall blow, but ye shall not blow an alarm:

⁸the sons of Aaron, the priests, shall blow with the trumpets; and they shall be to you for an everlasting statute throughout your generations.

⁹And if ye go to war in your land against the enemy that oppresseth you, then ye shall blow an alarm with the trumpets; and ye shall be remembered before Jehovah your God, and ye shall be saved from your enemies.

¹⁰And in the day of your gladness, and in your set feasts, and in your new moons, ye shall blow with the trumpets over your burnt-offerings and over your sacrifices of peace-offering; and they shall be to you for a memorial before your God: I am Jehovah your God.

¹¹And it came to pass in the second year, in the second month, on the twentieth of the month, that the cloud was taken up from off the tabernacle of the testimony.