Joshua 6:12-14

12Now Joshua got up early in the morning, and the priests took up the ark of the Lord. 13Then 1the seven priests carrying the seven trumpets of rams’ horns in front of the ark of the Lord went on continually, and blew the trumpets; and the armed men went ahead of them, and 2the rear guard came after the ark of the Lord, while they continued to blow the trumpets. 14So the second day they marched around the city once and returned to the camp; they did the same for six days.