Bamidbar 18:26-28

Orthodox Jewish Bible

²⁶ Thus speak unto the Levi’im, and say unto them, When ye take of the Bnei Yisroel the ma’aser which I have given you from them for your nachalah, then ye shall raise up a terumah of it for Hashem, even a ma’aser of the ma’aser.

²⁷ And this your terumah shall be reckoned unto you, as though it were the grain of the threshing floor, and as the fulness of the winepress.

²⁸ Thus ye also shall offer a terumat Hashem of all your ma’aserot, which ye receive of the Bnei Yisroel; and ye shall give thereof terumat Hashem to Aharon HaKohen.