Hebrews 7:10

For he was yet in the loins of his father, when Melchisedec met him.

For he was yet in the loins of his father,.... Abraham; namely, Levi and his whole posterity; which is to be understood seminally, just as all mankind were in the loins of Adam, when he sinned and fell, and so they sinned and fell in him; and so Levi was in Abraham's loins,

when Melchisedec met him; which, as it proves Melchizedek to be greater than Levi, and much more Jesus Christ, who is a priest of his order, which is the grand thing the apostle has in view; so it serves to illustrate several points of doctrine, in which either of the public heads, Adam and Christ, are concerned, with respect to their seed and offspring; such as personal election in Christ, an eternal donation of all blessings of grace to the elect in him, eternal justification in him, the doctrine of original sin, and the saints' crucifixion, burial, resurrection, and session in Christ, and together with him.