While the horns continued to sound, the armed troops marched ahead of the priests who blew the horns, and the rear guard followed the ark.

Numbers 10:25
Finally, the divisions of the camp of Dan set out under their standard, serving as the rear guard for all units, with Ahiezer son of Ammishaddai in command.

Joshua 6:8
After Joshua had spoken to the people, seven priests carrying seven rams' horns before the LORD advanced and blew the horns, and the ark of the covenant of the LORD followed them.

Joshua 6:10
But Joshua had commanded the people: "Do not give a battle cry or let your voice be heard; do not let one word come out of your mouth until the day I tell you to shout. Then you are to shout!"

Joshua 6:13
And the seven priests carrying seven rams' horns kept marching ahead of the ark of the LORD and blowing the horns. The armed troops went in front of them and the rear guard followed the ark of the LORD, while the horns kept sounding.

Isaiah 52:12
For you will not leave in a hurry nor flee in haste, for the LORD goes before you, and the God of Israel is your rear guard.

And the armed men went before the priests that blew with the trumpets, and the rear guard came after the ark, the priests going on, and blowing with the trumpets.