‏ Numbers 15:18-21

18 aSpeak to the people of Israel and say to them, When you come into the land to which I bring you 19and when you eat of bthe bread of the land, you shall present a contribution to the Lord. 20 cOf the first of your dough you shall present a loaf as a contribution; like a dcontribution from the threshing floor, so shall you present it. 21 eSome of the first of your dough you shall give to the Lord as a contribution throughout your generations.

Copyright information for ESV