10 So the priests who bore the ark stood in the midst of the Jordan until everything was finished that the Lord had commanded Joshua to speak to the people, according to all that Moses had commanded Joshua; and the people hurried and crossed over. 11 Then it came to pass, when all the people had completely crossed over, that the ark of the Lord and the priests crossed over in the presence of the people. 12 And the men of Reuben, the men of Gad, and half the tribe of Manasseh crossed over armed before the children of Israel, as Moses had spoken to them. 13 About forty thousand prepared for war crossed 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.