Deuteronomy 14:22-23

YLT(i) 22 `Thou dost certainly tithe all the increase of thy seed which the field is bringing forth year by year; 23 and thou hast eaten before Jehovah thy God, in the place where He doth choose to cause His name to tabernacle, the tithe of thy corn, of thy new wine, and of thine oil, and the firstlings of thy herd, and of thy flock, so that thou dost learn to fear Jehovah thy God all the days.