DEU 14:23

23 And thou shalt eat before Hashem Eloheicha, in the place which He shall choose to place Shmo there, the ma'aser [(tithe)] of thy dagan [(grain)], of thy tirosh [(new wine)], and of thine yitzhar [(fresh oil)], and the bekhorot [(firstlings)] of thy herds and of thy flocks; that thou mayest learn to stand in awe of Hashem Eloheicha always.