MELCHISEDEC
In Arabic (MELCHISEDEC) is (Melk = means Angle ) and (Sedec = means Friendship, and Truth) , and KING OF SALEM means also (ANGEL OF PEACE) where the translation of king is (MALAK , which also means ANGEL) so Melchisedec is the Angel Of Peace and Friendship , where after the war between Abraham and the nations , there comes the Angel of peace Sent by the LORD to tell Abraham that he must make peace with nations after this war ,then Abraham gave in the name of GOD part of all. So Melchisedec was not a man , he was an ANGEL , which made him Imortal.
Hebrews vii. 1-3.-"For this Melchisedec, King of Salem, Priest of the most High God, who met Abraham returning from the slaughter of the Kings, and blessed him: to whom also Abraham gave a tenth part of all; first being by interpretation King of Righteousness, and after that also King of Salem, which is, King of Peace, without father, without mother, without genealogy, having neither beginning of days, nor end of life, But made like unto the Son of God, abideth a Priest continually."
And what does(Paul) say? "For this Melchisedec, King of Salem, Priest of the Most High God." And, what is especially noteworthy, he shows the difference to be great by the Type itself. For as I said, he continually confirms the truth from the Type, from things past, on account of the weakness of the hearers. "For" (he says) "this Melchisedec, King of Salem, Priest of the Most High God, who met Abraham returning from the slaughter of the Kings, and blessed him, to whom also Abraham gave a tenth part of all." Having concisely set down the whole narrative, he looked at3 it mystically. see this link