Matthew Poole and continuators on Joshua 1:16

16 And they answered Joshua, saying, All that thou commandest us, we will do, and whithersoever thou sendest us, we will go.

i. e. The Reubenites, &c. mentioned v. 12. to whom Ioshua's Discourse is confined v. 13, 14, 15. No doubt the other Tribes expressed the same thing; but this is only recorded concerning these, because that might seem most doubtful, and the obedience of the rest was unquestionable.