Exodus 16:7

4 And the Lord said to Moses: Behold I will rain bread from heaven for you; let the people go forth, and gather what is sufficient for every day: that I may prove them whether they will walk in my law, or not.

5 But the sixth day let them provide for to bring in: and let it be double to that they were wont to gather every day.

6 And Moses and Aaron said to the children of Israel In the evening you shall know that the Lord hath brought you forth out of the land of Egypt:

7 And in the morning you shall see the glory of the Lord: for he hath heard your murmuring against the Lord: but as for us, what are we, that you mutter against us?

8 And Moses said: In the evening the Lord will give you flesh to eat, and in the morning bread to the full: for he hath heard your murmurings, with which you have murmured against him, for what are we? your murmuring is not against us, but against the Lord.

9 Moses also said to Aaron: Say to the whole congregation of the children of Israel: Come before the Lord; for he hath heard your murmuring.

10 And when Aaron spoke to all the assembly of the children of Israel, they looked towards the wilderness; and behold the glory of the Lord appeared in a cloud.