Exodus 16:5

They are to bring in twice as much as usual and prepare it on the sixth day.

Exodus 16:22-23

The sixth day they gathered twice as much food, four quarts for each person. All the leaders of the congregation came and told Moses about it. (Mark 15:42)

Exodus 35:2-3

You may work for six days. The seventh day is a holy day of worship (a Sabbath). It is a day when you do not work. It is dedicated to Jehovah. Whoever does any work on this day should be put to death.

Leviticus 25:21-22

I will give you my blessing in the sixth year so that the land will produce enough for three years.

Treasury of Scripture Knowledge

Summary

And it shall come to pass, that on the sixth day they shall prepare that which they bring in; and it shall be twice as much as they gather daily.

Bible References

Prepare

Exodus 16:23
Moses said: Jehovah has commanded that tomorrow is a holy day of rest, dedicated to God. Bake today what you want to bake and boil what you want to boil. Whatever is left should be put aside and kept for tomorrow.
Exodus 35:2
You may work for six days. The seventh day is a holy day of worship (a Sabbath). It is a day when you do not work. It is dedicated to Jehovah. Whoever does any work on this day should be put to death.
Leviticus 25:21
I will give you my blessing in the sixth year so that the land will produce enough for three years.