Yehoshua 6:4-6

Orthodox Jewish Bible

⁴ And shivah Kohanim shall bear before the Aron shivah shoferot hayovelim; and the Yom HaShevi’i ye shall march around the Ir sheva times, and the Kohanim shall sound the shoferot.

⁵ And it shall come to pass, that when they make a long blast with the keren hayovel, when ye hear the sound of the shofar, Kol HaAm shall shout with a teruah gedolah; and the Chomat HaIr shall fall down, and HaAm shall go up every ish charging straight in.

⁶ And Yehoshua ben Nun called the Kohanim, and said unto them, Take up the Aron HaBrit, and let shivah Kohanim bear shivah shoferot yovelim (seven ram-shofars) before the Aron Hashem.