Exodus 16:15-19 Amplified Bible (AMP)

15. When the Israelites saw it, they said one to another, Manna [What is it?]. For they did not know what it was. And Moses said to them, This is the bread which the Lord has given you to eat. [John 6:31, 33.]

16. This is what the Lord has commanded: Let every man gather of it as much as he will need, an omer for each person, according to the number of your persons; take it, every man for those in his tent.

17. The [people] did so, and gathered, some more, some less.

18. When they measured it with an omer, he who gathered much had nothing over, and he who gathered little had no lack; each gathered according to his need.

19. Moses said, Let none of it be left until morning.

Exodus 16