Charles Ellicott Commentary Numbers 11:13

"Whence should I have flesh to give unto all this people? for they weep unto me, saying, Give us flesh, that we may eat." — Numbers 11:13 (ASV)

Whence should I have flesh ...?— Moses does not justify the murmuring of the people, and was doubtless conscious of their sinfulness. At the same time, he displays a spirit of discontent, and almost of despair, at God’s dealings with him; and he appears to treat the demand of the Israelites for flesh as one which was not altogether unreasonable.