Joseph Benson's Commentary of the Old and New Testaments - Hebrews 7:4-7
Hebrews 7:4-7. Consider how great this man was The greatness of Melchisedec is described in all the preceding and following particulars. But the most manifest proof of it was, that Abraham gave him tithes as a priest of God, and a superior; though he was himself a patriarch, greater than a king, and a progenitor of many kings. The sons of Levi take tithes of their brethren Sprung from Abraham as well as themselves. The Levites, therefore, are greater than they; but the priests are greater... read more
Albert Barnes' Notes on the Whole Bible - Hebrews 7:5
And verily they that are of the sons of Levi - The meaning of this verse is, that the Levitical priests had a right to receive tithes of their brethren, but still that they were inferior to Melchizedek. The apostle admits that their superiority to the rest of the people was shown by the fact that they had a right to require of them the tenth part of the productions of the land for their maintenance, and for the support of religion. But still he says, that their inferiority to Melchizedek, and... read more