The priests going on. —Literally, with going, and blowing the trumpets. “The priests” is inserted by the Targum.

And seven priests bearing seven trumpets of rams' horns
before the ark of the Lord (See Gill on Joshua 6:4)…

Wherever the ark went, the people attended it. God's ministers, by the trumpet of the everlasting gospel, which proclaims liberty and victory, must…