Note the parenthetical clause Genesis 14:18-20, which interrupts in order to interpret.
Melchizedek. King of righteousness, or by Figure of Speech Enallage, (App-6), righteous king. In History, Genesis 14. In Prophecy, Psalms 110. In Fulfilment, Hebrews 7. This might be Shem in type, Christ in antitype.
Salem. Called, on the bricks of the ruins of an ancient city in S. of Palestine, Uru-Salim. the city of Salim. The Tablets show that Palestine was at this time in possession of Egypt, and the Tablets are letters to the Pharaohs Amenophis III and IV. One is from Ebed-Tob, the successor of Melchizedek. Three times he says "not my father, not my mother installed me in this place but the Mighty King" (Compare Hebrews 7:1-4), i.e. he did not inherit by succession, but by the gift and "the arm of the Mighty King" (the deity).
wine. Same as Genesis 9:20-24. See App-27.
priest. Yet no sacrifices. Hence. type of Him to Whom all shall bow (Psalms 110:4, and pay their tithes and bring their gifts (Psalms 72). See note on Genesis 9:27.
MOST HIGH GOD. Hebrew. El Elyon, so verses: Genesis 14:19; Genesis 14:20; Genesis 14:22. See App-4. First occurance of this title. Compare first occurance in N.T. (Luke 1:76) "Highest", in relation to the earth. See also Deuteronomy 32:8 (compare Acts 17:26). Psaalm 8; Psalms 9:18, Psa 9:27. and note on Numbers 24:16.