Then the LORD said to Moses, “Behold, I will rain down bread from heaven for you. Each day the people are to go out and gather enough for that day. In this way I will test whether or not they will follow My instructions.
Jewish Publication Society of America Version (JPS1917) - Exodus 16:4 >Then said the LORD unto Moses: 'Behold, I will cause to rain bread from heaven for you; and the people shall go out and gather a day's portion every day, that I may prove them, whether they will walk in My law, or not.