Numbers 10:7 (BSB)

To convene the assembly, you are to sound long blasts, not short ones.

From Numbers 10. Also in the ESV.

Commentary on Numbers 10:7

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Numbers 10:1-10: We have here directions concerning the public notices that were to be given to the people upon several occasions by sound of trumpet. In a thing of this nature, one would think, Moses needed not to have been taught of God: his own reason might teach him the conveniency of trumpets; but the constitution of Israel was to be in every thing divine, and therefore...
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Numbers 10:7: But when the congregation is to be gathered together,.... At the door of the tabernacle of the congregation, and not to move in separate camps or bodies one after another: you shall blow, but you shall not sound an alarm; blow with an even and uninterrupted sound, and not with a broken and quavering one; by which the congregation and camps were distinguished from one...
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on Numbers 10:7: Num 10:7 But to call the congregation together they were to blow, not to sound an alarm. תּקע signifies blowing in short, sharp tones. הריע = תּרוּעה תּקע, blowing in a continued peal.