Numbers 10:2-4

Evangelical Heritage Version

² to make two trumpets of hammered silver and to use them in this way:

You will use them to summon the community and to have the camp set out.

³ When they blow both trumpets, the entire community will gather to you at the entrance to the Tent of Meeting. ⁴ If they blow just one trumpet, then the tribal chiefs, the heads of the Israelite clans, will gather to you.