'Tithe' in the Bible

"To the children of Levi, behold, I have given all the tithe in Israel for an inheritance, in return for their service which they serve, even the service of the Tent of Meeting.

For the tithe of the children of Israel, which they offer as a wave offering to Yahweh, I have given to the Levites for an inheritance: therefore I have said to them, 'Among the children of Israel they shall have no inheritance.'"

"Moreover you shall speak to the Levites, and tell them, 'When you take of the children of Israel the tithe which I have given you from them for your inheritance, then you shall offer up a wave offering of it for Yahweh, a tithe of the tithe.