18 And Melchizedek, the king of Salem and a priest of God Most High, brought Abram some bread and wine. 19 Melchizedek blessed Abram with this blessing: "Blessed be Abram by God Most High, Creator of heaven and earth. 20 And blessed be God Most High, who has defeated your enemies for you." Then Abram gave Melchizedek a tenth of all the goods he had recovered.
Matthew Henry's Commentary on Genesis 14:18-20
Commentary on Genesis 14:17-20
(Read Genesis 14:17-20)
Melchizedek is spoken of as a king of Salem, supposed to be the place afterwards called Jerusalem, and it is generally thought that he was only a man. The words of the apostle, Hebrews 7:4. When we have received some great mercy from God, it is very fit we should express our thankfulness by some special act of pious charity. Jesus Christ, our great Melchisedek, is to have homage done him, and to be humbly acknowledged as our King and Priest; not only the tithe of all, but all we have, must be given up to him.