Cross reference
Numbers 18:28
28 so ye do lift up -- ye also -- the heave-offering of Jehovah from all your tithes which ye receive from the sons of Israel; and ye have given from it the heave-offering of Jehovah to Aaron the priest;
Genesis 14:18
18 And Melchizedek king of Salem hath brought out bread and wine, and he `is' priest of God Most High;
Hebrews 6:20-10
20 whither a forerunner for us did enter -- Jesus, after the order of Melchisedek chief priest having become -- to the age.
1 For this Melchisedek, king of Salem, priest of God Most High, who did meet Abraham turning back from the smiting of the kings, and did bless him,
2 to whom also a tenth of all did Abraham divide, (first, indeed, being interpreted, `King of righteousness,' and then also, King of Salem, which is, King of Peace,)
3 without father, without mother, without genealogy, having neither beginning of days nor end of life, and being made like to the Son of God, doth remain a priest continually.
4 And see how great this one `is', to whom also a tenth Abraham the patriarch did give out of the best of the spoils,
5 and those, indeed, out of the sons of Levi receiving the priesthood, a command have to take tithes from the people according to the law, that is, their brethren, even though they came forth out of the loins of Abraham;
6 and he who was not reckoned by genealogy of them, received tithes from Abraham, and him having the promises he hath blessed,
7 and apart from all controversy, the less by the better is blessed --
8 and here, indeed, men who die do receive tithes, and there `he', who is testified to that he was living,
9 and so to speak, through Abraham even Levi who is receiving tithes, hath paid tithes,
10 for he was yet in the loins of the father when Melchisedek met him.