The dome of the rock in Jerusalem is built upon Mount Moriah. The Mount was one summit of a range of hills which went under the general name of Zion.
It was on Mount Moriah that Abraham was to offer up his son Isaac as a sacrifice to God (Genesis 22:1-14). The platform of the temple is now, and has long been, occupied by the haram, or sacred enclosure, within which stand the three mosques of Omar (the smallest), of El Aksa, which in early times was a Christian church, and of Kubbet el Sakhara. This building is called the "dome of the rock" due to the huge block of limestone rock in the center of the floor, which, it is supposed, formed the elevated threshing floor of Araunah, and on which King David made a great brazen altar on (see 2Samuel 24). King Solomon built the temple of God in Jerusalem right on this threshing floor (2Chronicles 3:1).
