When Aaron saw this, he built an altar before it; then he made an announcement: “There will be a festival to the Lord tomorrow.”

“Tomorrow,” he answered.

Moses replied, “As you have said, so you may know there is no one like Yahweh our God,

I will make a distinction between My people and your people. This sign will take place tomorrow.”

“As soon as I leave you,” Moses said, “I will appeal to the Lord, and tomorrow the swarms of flies will depart from Pharaoh, his officials, and his people. But Pharaoh must not act deceptively again by refusing to let the people go and sacrifice to the Lord.”

And the Lord set a time, saying, “Tomorrow the Lord will do this thing in the land.”

Tomorrow at this time I will rain down the worst hail that has ever occurred in Egypt from the day it was founded until now.

But if you refuse to let My people go, then tomorrow I will bring locusts into your territory.

And the Lord told Moses, “Go to the people and consecrate them today and tomorrow. They must wash their clothes

He told them, “This is what the Lord has said: ‘Tomorrow is a day of complete rest, a holy Sabbath to the Lord. Bake what you want to bake, and boil what you want to boil, and set aside everything left over to be kept until morning.’”

Moses said to Joshua, “Select some men for us and go fight against Amalek. Tomorrow I will stand on the hilltop with God’s staff in my hand.”