Allegorically the question was asked "And where did Mount Sinai come from?" Rabbi Yosi said (Midrash Tehilim Mizmor 68) ’it was separated from Mount Moriah, like the hallah* offering from the dough, from the place where Yitzchak, our father was bound. The Holy One said – since Yitzchak was bound upon it, it is fitting that his children receive the Torah upon it. (*dough is separated from the bread baked for Sabbath and burned)
Yitzchak or Isaac was 37 years at his binding. King David returned Moses Ark of the Covenant to Israel, to the City of David, Jerusalem where it was located for 37 years until his son Solomon moved it to its more permanent place in the Holy of Holies of the First Temple.
Jerusalem Temple Mount looking north - green Kidron Valley (middle of picture)
Ancient Jerusalem (looking north) on Mount Moriah before Temple Mount - Kidron Valley below Gihon fortress
Gihon fortress was built by enemies to stop Joshua and Israel. It cut access to holy high ridge
400 years after Joshua high ridge was restored by King David as temporary home of the Holy Ark
High ridge was used previously for holy worship and ceremony, 1000 years before King David
Current excavation above ground and bedrock below
On the bedrock - southern room
On the bedrock Matzevah
Matzevah from time of Jacob was protected by a later king with soft sand and false wall
