Numbers 10:4

4 If they blow but one, then the princes, the heads of the thousands of Yisra'el, shall gather themselves to you.

Numbers 10:4 Meaning and Commentary

Numbers 10:4

And if they blow [but] with one [trumpet]
With only one of them, or but once, with one sounding, and that an even one as before:

then the princes, [which are] the heads of the thousands of Israel,
shall gather themselves unto thee:
and they only or alone, as Aben Ezra: by this token, or by this difference of blowing both trumpets, or only one, it was, easily known when the whole congregation or when the princes only were to meet Moses at the same place, the door of the tabernacle of the congregation; and all are to attend divine service, and the ministry of the word, even the whole church of God, and all the members of it, high and low, rich and poor, princes and people.

Numbers 10:4 In-Context

2 Make you two trumpets of silver; of beaten work shall you make them: and you shall use them for the calling of the congregation, and for the journeying of the camps.
3 When they shall blow them, all the congregation shall gather themselves to you at the door of the tent of meeting.
4 If they blow but one, then the princes, the heads of the thousands of Yisra'el, shall gather themselves to you.
5 When you blow an alarm, the camps that lie on the east side shall take their journey.
6 When you blow an alarm the second time, the camps that lie on the south side shall take their journey: they shall blow an alarm for their journeys.
The Hebrew Names Version is in the public domain.