Unknown Author
Hebrews 7:2ESV·author unknown

and to him Abraham apportioned a tenth part of everything. He is first, by translation of his name, king of righteousness, and then he is also king of Salem, that is, king of peace.

Matthew Henry Presbyterian @wholebiblehenry

The foregoing chapter ended with a repetition of what had been cited once and again before out of Psa 110:4, Jesus, a high priest for ever, after the order of Melchisedec. Now this chapter is as a sermon upon that text; here the apostle sets before them some of the strong meat he had spoken of before, hoping they would by greater diligence be better prepared to digest it. I.

Commenting on Hebrews 7:1-10

John Gill Reformed Baptist @doctorgill

To whom also Abraham gave a tenth part of all,.... Or tithes, as in Gen 14:20. Philo the Jew (b) renders the Hebrew phrase, , just as the apostle does , "a tenth part of all", or "out of all"; not of all that he brought back, as Lot's goods, or the king of Sodom's, or any others; only of the spoils of the enemy...

Albert Barnes Presbyterian @notesbybarnes

Verse 2. To whom also Abraham gave a tenth part of all. That is, a tenth part of all the spoils which he had taken, ; thus acknowledging that, in dignity of office, Melchisedek was greatly his superior, . This does not appear to have been, on the part of Abraham, so much designed as a present to Melchisedek personally, as an act of pious thankfulness to God.