Exodus 16:25
And Moses said, "Eat it today, because today is a Sabbath for Yahweh. Today you will not find it in the field.
Exodus 16:23
And he said to them, "This is what Yahweh has said. Tomorrow [is] a rest period, a holy Sabbath for Yahweh. Bake what you [want to] bake, and boil what you [want to] boil. Put aside all the surplus for yourselves for safekeeping until the morning."
Exodus 16:29
See, because Yahweh has given to you the Sabbath, therefore he is giving to you on the sixth day bread for two days. Stay, {each in his location}; let no one go from his place on the seventh day."
Nehemiah 9:14
You made known your holy Sabbath to them and gave them commandments, regulations, and law by the hand of your servant Moses.