Numbers 18:23-30 21st Century King James Version (KJ21)
23 But the Levites shall do the service of the tabernacle of the congregation, and they shall bear their iniquity. It shall be a statute for ever throughout your generations that among the children of Israel they have no inheritance.
24 But the tithes of the children of Israel, which they offer as a heave offering unto the Lord, I have given to the Levites to inherit. Therefore I have said unto them: ‘Among the children of Israel they shall have no inheritance.’”
25 And the Lord spoke unto Moses, saying,
26 “Thus speak unto the Levites and say unto them: ‘When ye take of the children of Israel the tithes which I have given you from them for your inheritance, then ye shall offer up a heave offering of it for the Lord, even a tenth part of the tithe.
27 And this your heave offering shall be reckoned unto you as though it were the corn of the threshing floor and as the fullness of the wine press.
28 Thus ye also shall offer a heave offering unto the Lord of all your tithes, which ye receive from the children of Israel; and ye shall give thereof the Lord’S heave offering to Aaron the priest.
29 Out of all your gifts ye shall offer every heave offering of the Lord of all the best thereof, even the hallowed part thereof out of it.’
30 Therefore thou shalt say unto them: ‘When ye have offered the best thereof from it, then it shall be counted unto the Levites as the increase of the threshing floor and as the increase of the wine press.