And verily they that are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:
Sons of Levi - of the family of Aaron, to whom the priesthood was restricted. Tithes originally paid to the whole tribe became at length attached to the priest family.
According to the law - sanctioned by Yahweh (Hebrews 9:19).
Of their brethren, though ... "Though" on a level by common descent from Abraham, they yet pay tithe to the Levites, whose "brethren" they are. Now the Levites are subordinate to the priests; and these again to Abraham, their common progenitor; and Abraham to Melchisedek. "How great" (Hebrews 7:4), then, must this Melchisedek be in his priesthood, as compared with the Levitical, though the latter received tithes; and how unspeakably great must "the Son of God" be, to whom, as the sacerdotal archetype (in God's purpose), Melchisedek, the type, was made like! Thus compare the "consider" х theooreite (G2334)], Hebrews 7:4, in the case of Melchisedek, the type, with the "consider" х katanoeesate (G2657): note, Hebrews 3:1] in the case of case of Melchisedek, the type, with the "consider" х katanoeesate (G2657): note, Hebrews 3:1] in the case of Christ, the archetype.