EXO 16:4

4 Yahweh said to Moses/me, “Listen to what I am going [to do]. I am going to send something from the sky that will [take the place of] bread for all of you. When I do that, the people must go out of their tents every day and gather just enough to eat on that day. [When I do that], I will find out whether they will obey my instructions or not.