John Gill Commentary Deuteronomy 2:28

"Thou shalt sell me food for money, that I may eat; and give me water for money, that I may drink: only let me pass through on my feet," — Deuteronomy 2:28 (ASV)

Thou shalt sell me meat for money, that I may eat If they thought fit to have provision of them, they desired no other but to pay for it:

and give me water for money, that I may drink ; see (Deuteronomy 2:6) ,

only I will pass through on my feet ; for they were all footmen, (Numbers 11:21) , of the phrase, (See Gill on Numbers 20:19).