Numbers 18:28

Thus ye also shall offer a heave-offering to LORD of all your tithes, which ye receive of the sons of Israel. And from it ye shall give LORD's heave-offering to Aaron the priest.

Genesis 14:18

And Melchizedek king of Salem brought forth bread and wine. And he was priest of God Most High.

Hebrews 6:20-10

where the forerunner, Jesus, entered for us, having become a high priest into the age according to the order of Melchizedek.

Treasury of Scripture Knowledge

Summary

Thus ye also shall offer an heave offering unto the LORD of all your tithes, which ye receive of the children of Israel; and ye shall give thereof the LORD'S heave offering to Aaron the priest.

Bible References

And ye shall

Genesis 14:18
And Melchizedek king of Salem brought forth bread and wine. And he was priest of God Most High.
Hebrews 6:20
where the forerunner, Jesus, entered for us, having become a high priest into the age according to the order of Melchizedek.
Hebrews 7:1
For this Melchizedek, king of Salem, priest of God Most High, having met Abraham returning from the slaughter of the kings, also blessed him.