Take up the ark, to wit, upon your shoulders; for so they were to carry it, Numbers 7:9. Before the people; not in the middle of them, as you used to do.
Related Commentaries of Joshua 3:6
Joshua 3:6
6 And Joshua spake unto the priests, saying, Take up the ark of the covenant, and pass over before the people. And they took up the ark of the covenant, and went before the people.