Joshua 6:3-4

6:3 Have all the warriors march around the city one time; do this for six days. 6:4 Have seven priests carry seven rams’ horns in front of the ark. On the seventh day march around the city seven times, while the priests blow the horns.

Numbers 32:20

32:20 Then Moses replied, “If you will do this thing, and if you will arm yourselves for battle before the Lord,