Numbers 15:2, 18-21

“Speak to the Israelites and tell them: When you enter the land I am giving you to settle in

“Speak to the Israelites and tell them: After you enter the land where I am bringing you, you are to offer a contribution to the LORD when you eat from the food of the land. You are to offer a loaf from your first batch of dough  as a contribution; offer it just like a contribution from the threshing floor.  Throughout your generations, you are to give the LORD a contribution from the first batch of your dough.