SEV Biblia, Chapter 7:6
Mas aquel cuya genealogía no es contada en ellos, tom de Abraham los diezmos, y bendijo al que tenía las promesas.
Clarke's Bible Commentary - Hebrew 7:6
Verse 6. Blessed him that had the promises.] This is a continuation of the same argument, namely, to show the superiority of Melchisedec; and, in consequence, to prove the superiority of the priesthood of Christ beyond that of Aaron. As in the seed of Abraham all the nations of the earth were to be blessed, Abraham received a sacerdotal blessing from Melchisedec, who was the representative of the Messiah, the promised seed, to show that it was through him, as the high priest of the human race, that this blessing was to be derived on all mankind.
John Gill's Bible Commentary
Ver. 6. But he whose descent is not counted from them , etc.] That is, Melchizedek, whose genealogy or pedigree is not reckoned from the Levites, nor from any from whom they descend; his lineal descent is not the same with theirs; and so did not receive tithes by any law, as they did, but by virtue of his superiority: received tithes of Abraham; not from the people, or his brethren, but from Abraham, the father of the people of Israel, and of Levi himself: and blessed him that had the promises ; of a Son, and of the Messiah, that should spring from him, in whom all nations should be blessed, and of the land of Canaan, and of the blessings of grace and glory. This shows that Melchizedek had a descent, though it was not known; and that, since his descent was not the same with the Levites, he was a more proper type of Christ, who belonged not to that, but another tribe.
Matthew Henry Commentary
Verses 4-10 - That High Priest who should afterward appear, of whom Melchizedec was type, must be much superior to the Levitical priests. Observe Abraham' great dignity and happiness; that he had the promises. That man is ric and happy indeed, who has the promises, both of the life that now is and of that which is to come. This honour have all those who receiv the Lord Jesus. Let us go forth in our spiritual conflicts, trusting in his word and strength, ascribing our victories to his grace, an desiring to be met and blessed by him in all our ways.
Greek Textus Receptus
ο 3588 δε 1161 μη 3361 γενεαλογουμενος 1075 5746 εξ 1537 αυτων 846 δεδεκατωκεν 1183 5758 τον 3588 αβρααμ 11 και 2532 τον 3588 εχοντα 2192 5723 τας 3588 επαγγελιας 1860 ευλογηκεν 2127 5758
Vincent's NT Word Studies
6. But he whose descent is not counted from them (o de mh genealogoumenov ex autwn). Lit. he who is not genealogically derived from them: Melchisedec. The verb N.T.o .
Received tithes of Abraham. Melchisedec, who has no part in the Levitical genealogy, and therefore no legal right to exact tithes, took tithes from the patriarch himself. Hence he was greater than Abraham. The right of the Levitical priest to receive tithes was only a legal right, conferred by special statute, and therefore implied no intrinsic superiority to his brethren; but Melchisedec, though having no legal right, received tithes from Abraham as a voluntary gift, which implied Abraham's recognition of his personal greatness.
And hath blessed him that had the promises. Melchisedec accepted the position accorded to him by Abraham's gift of tithes by bestowing on Abraham his blessing, and Abraham recognized his superiority by accepting his blessing. He who had received the divine promises might have been supposed to be above being blessed by any man. The significance of this acceptance is brought out in the next verse.