Numbers 15:21

Of the firstfruits of your dough ye shall give unto the LORD an offering in your generations.

Exodus 29:28

and it shall be for Aaron and for his sons by a perpetual statute of the sons of Israel, for it is something set apart, and it shall be set apart of the sons of Israel of the sacrifice of their peace offerings; it shall be something of theirs set apart unto the LORD.

Numbers 18:26

Thus shalt thou speak unto the Levites and say unto them, When ye take the tithes from the sons of Israel which I have given you from them for your inheritance, then ye shall present a tithe of the tithes as an offering unto the LORD.

Treasury of Scripture Knowledge

Summary

Of the first of your dough ye shall give unto the LORD an heave offering in your generations.

General references

Bible References

General references

Numbers 18:26
Thus shalt thou speak unto the Levites and say unto them, When ye take the tithes from the sons of Israel which I have given you from them for your inheritance, then ye shall present a tithe of the tithes as an offering unto the LORD.
Exodus 29:28
and it shall be for Aaron and for his sons by a perpetual statute of the sons of Israel, for it is something set apart, and it shall be set apart of the sons of Israel of the sacrifice of their peace offerings; it shall be something of theirs set apart unto the LORD.