Verse 12. - At even. Literally, "between the two evenings." For the meaning of the phrase, see the comment on Exodus 12:6. Ye shall eat flesh. The quails, as appears by the subsequent narrative, were supplied, not regularly, but only on rare occasions; in fact (so far as appears), only here in the wilderness of Sin, and at Kibroth-hattaavah in the wilderness of Paran (Numbers 11:31-34). They were not a necessary, but an indulgence. Ye shall know that I am the Lord. The miracle of the manna, and the timely appearance of the quails at the hour announced, will sufficiently show that it is God himself who has you under his charge and watches over you.

16:1-12 The provisions of Israel, brought from Egypt, were spent by the middle of the second month, and they murmured. It is no new thing for the greatest kindness to be basely represented as the greatest injuries. They so far undervalue their deliverance, that they wished they had died in Egypt; and by the hand of the Lord, that is, by the plagues which cut off the Egyptians. We cannot suppose they had plenty in Egypt, nor could they fear dying for want in the wilderness, while they had flocks and herds: none talk more absurdly than murmurers. When we begin to fret, we ought to consider, that God hears all our murmurings. God promises a speedy and constant supply. He tried whether they would trust him, and rest satisfied with the bread of the day in its day. Thus he tried if they would serve him, and it appeared how ungrateful they were. When God plagued the Egyptians, it was to make them know he was their Lord; when he provided for the Israelites, it was to make them know he was their God.I have heard the murmurings of the children of Israel,.... This Moses and Aaron had often affirmed, and now the Lord confirms what they had said, and lets them know that he took notice of their murmurings, and disapproved of them, and was displeased with them; though he did not think fit to resent them in an angry way, but dealt kindly and graciously with them; and since he had brought them into a wilderness, which was his own act, he would take care of them, and provide for them; which they might reasonably conclude he would, since he had done so many great and good things for them, in bringing them out of Egypt, and through the Red sea, and had slain all their enemies, and had given them water when in distress, and therefore need not have murmured nor have doubted but that he would give them bread also:

speak unto them, saying, at even ye shall eat flesh; meaning that very evening, when the quails came up, as the following verse shows:

and in the morning ye shall be filled with bread; the next morning, when the manna fell around their camp, so that they had bread, and fulness of it:

and ye shall know that I am the Lord your God; good and gracious, kind and merciful, ever mindful of his covenant and promises, able to supply their wants, and provide them with everything necessary and sufficient for them.