Was Abraham a Christian or a Jew?

Or do you say that Abraham and Ishmael and Isaac and Jacob and the Descendants were Jews or Christians? Say, "Are you more knowing or is Allah ?.. "
--Quran 2:140

At first glance it appears the Quran is is making a powerful argument.  Abraham could not have been a Jew as Moses came much later, and could not have been Christian as Christ was even later. So he was obviously Muslim, right?

And yet how could he have been Muslim?  Mohammed was even later than both of these.  This is an example Muslim's common trick of equating belief in God with Mohammed-ism.  In fact it shows to the contrary that you don't need Mohammed to be in good standing with God.

What is worse it appears that the author of the Quran was ignorant of the discussion of Melchizedek in Hebrews chapter 7.
Notice his titles:


Even Abraham the patriarch gave him a tenth of his spoils.
A priest.
King of Salem (meaning King of Peace).
No end of life recorded, as someone whose ministry remains forever.
So he is an Old Testament "type of Christ"

 Hebrews argues that Jesus could be a priest without the important Levitical ancestry because Christ is a priest after the order of Melchizedek, and that priesthood is more fundamental than the Levitical one.

I used to hear Muslims ask about how someone else other than Christ could have no father, referring to Melchizedek:

 ...without father, without mother, without genealogy, having neither beginning of days nor end of life
--Heb 7:3

The Jews were very strict about being able to prove what tribe that priests belonged to, but Melchizedek was a priest whose ancestry was not mentioned.


I think that if the Quran really came from Allah that there would be a reasonable expectancy of more persuasive arguments than this.  The discussion should have started where Hebrews 7 left off, otherwise we may conclude the Quran is the result of a human effort without special insights.