they shall blow] That is, the Priests, the sonnes of Aaron the High-priest, vers. 8. and they shall blow, first, at the removall of the Campe: secondly, at the solemnitie of Feasts, to summon and call the people to them: thirdly, at the oblation of Sacrifices: fourthly, at the denunciation of Warre. Of their use Josephus saith, that one of them was to call the people together, the others the Rulers; and when both were sounded, both Rulers and people were to come together, Joseph. Antiq. lib. 3. cap. 11.