Armenian Apocrypha Relating to Abraham (Early Judaism and its Literature) by Michael E. Stone
This delightful volume contains the texts and translations of:
Lists and chronology (think genealogy and more)
Story of Father Abraham
Biblical Paraphrases on Abraham
The Memorial of the Forefathers Abraham, Isaac, and Jacob
Genealogy of Abraham
Poem on Abraham, Isaac, Melchizedek, Lot
The Tree of Sabek and Melchizedek
Story of the Holy Father Abraham and of Isaac, his Son, and of Mamre, his Servant
Story of Father Abraham (recension B)
Abraham in an Elenchic Text
The Story of Terah and of Father Abraham
Concerning Abraham's Hospitality
Sermon Concerning the Sodomites
The Ten Trials of Abraham
Synaxarium, Constantinople
Sermon Concerning Hospitality
plus appendix listing other works and fragments, iconographic notes ...
Now try to tell me that you never wondered about Melchizedek - and here is an opportunity to get some of your questions answered. And a Christian perspective on the Trials of Abraham which I knew only from Judaic sources.