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Hebrews 7:13ESV·author unknown

For the one of whom these things are spoken belonged to another tribe, from which no one has ever served at the altar.

John Calvin Reformed @genevareformer

13. For he of whom these things are spoken, or, said, Calvin renders “for”, γὰρ, “doubtless — certe,” and Stuart, “now;” but it may better be rendered here, “for,” as a reason is given for a change in “the law” respecting the priesthood. The γὰρ in the former verse may be rendered “indeed,” or “wherefore” as by Macknight.

Matthew Henry Presbyterian @wholebiblehenry

Observe the necessity there was of raising up another priest, after the order of Melchisedec and not after the order of Aaron, by whom that perfection should come which could not come by the Levitical priesthood, which therefore must be changed, and the whole economy with it, Heb 7:11, Heb 7:12, etc. Here, I. It is asserted that perfection could not come by the Levitical priesthood and the law.

Commenting on Hebrews 7:11-28

John Gill Reformed Baptist @doctorgill

For it is evident that our Lord sprang out of Judah,.... Out of the tribe of Judah; it is certain that the Messiah was to spring from that tribe, Gen 49:10 he was to be of the family of Jesse, and of the house of David; and hence he is sometimes called David himself; and so the Jews expect that he will come from the...