'Tithe' in the Bible
Thou mayest not eat within thy gates the tithe of thy grain, or of thy new wine, or of thine oil, or the firstlings of thy herd or of thy flock, nor any of thy vows which thou vowest, nor thy freewill-offerings, nor the heave-offering of thy hand;
Thou shalt surely tithe all the increase of thy seed, that which cometh forth from the field year by year.
And thou shalt eat before Jehovah thy God, in the place which he shall choose, to cause his name to dwell there, the tithe of thy grain, of thy new wine, and of thine oil, and the firstlings of thy herd and of thy flock; that thou mayest learn to fear Jehovah thy God always.
At the end of every three years thou shalt bring forth all the tithe of thine increase in the same year, and shalt lay it up within thy gates:
When thou hast made an end of tithing all the tithe of thine increase in the third year, which is the year of tithing, then thou shalt give it unto the Levite, to the sojourner, to the fatherless, and to the widow, that they may eat within thy gates, and be filled.