Exodus 16:2

The whole congregation murmured For want of bread, having consumed all the dough or flour which they had brought out of Egypt. A month's provision, it seems, the host of Israel took with them out of Egypt, when they came thence on the 15th day of the first month, which by the 15th of the second month was all spent. Against Moses and Aaron God's vicegerents among them. How weak and perverse is human nature! They had just seen the bitter waters instantaneously made sweet to assuage their thirst, and a little while before had been miraculously delivered at the Red sea, when there seemed to be no possible way for their escape; and yet so far were they from learning to trust in that divine, almighty Providence, that had so wonderfully and so evidently wrought for them, that on the very first difficulty and distress they break out into the most desponding murmurings!