10 For the priests bearing the ark stood in the midst of the Jordan until everything was finished that the Lord commanded Joshua to tell the people, according to all that Moses had commanded Joshua. The people passed over in haste. 11 And when all the people had finished passing over, the ark of the Lord and the priests passed over before the people. 12 The sons of Reuben and the sons of Gad and the half-tribe of Manasseh passed over armed before the people of Israel, as Moses had told them. 13 About 40,000 ready for war passed over before the Lord for battle, to the plains of Jericho.
Matthew Henry's Commentary on Joshua 4:10-13
Commentary on Joshua 4:10-19
(Read Joshua 4:10-19)
The priests with the ark did not stir till ordered to move. Let none be weary of waiting, while they have the tokens of God's presence with them, even the ark of the covenant, though it be in the depths of adversity. Notice is taken of the honour put upon Joshua. Those are feared in the best manner, and to the best purpose, who make it appear that God is with them, and that they set him before them.