I was having an argument about the centrality of Jerusalem in our tradition when I realized surprisingly, that, seemingly from the scriptures, Jerusalem wasn't so central for our forefathers at all.
There's a verse that מלכיצדק (allegedly Shem Ben Noah) was the king of Shalem (allegedly Jerusalem). It hints on the fact that Jerusalem as a city existed even in Avraham's times. We also know that Shem had a Yeshivah learning Torah.
When Avraham is instructed to leave for Israel and he travels the country he's not mentioned stopping in Jerusalem, either meet his grand-grand-^7-father or learn some Torah or see where the world was created or bring some sacrifices etc.
G-d invites Avraham to sacrifice his son on Har Hamoriya (Har Habayt - the place of the future Temple, also not explicit in the Torah) and Avraham realizes that, but he immediately forgets the place after the occasion.
Avraham and Itzhak and Yaakov travel all over the country stopping in different places - Shchem, Hebron, Beer Sheba but never in Jerusalem.
Yaakov stops "accidentally" (didn't he have a tradition from his father?) at Har Habayt goes to sleep and sees a dream etc, but again, never returns or remembers it.
Abraham buys a piece of land in Hebron and Yaakov in Shchem but they don't think of buying or somehow claiming possession of Har Habayt.
After the Egypt exile, Yehoshua brings the Jewish people to the Promised land but nobody rushes to Jerusalem and Har Habayt. It takes 400 years until David decides to turn it into the Jewish capital.
Maybe I omited some facts, please feel free to edit.
Why our forefathers did not claim the centrality of Jerusalem in Jewish tradition?
Do you think #6 should be a stand-alone question?