Easton's Bible Dictionary: M. G. Easton, M.A., D.D.
After spending a night in solemn meditation and prayer in the lonely mountain-range to the west of the Lake of Galilee (Lk. 6:12), on the following morning our Lord called to him his disciples, and from among them chose twelve, who were to be henceforth trained to be his apostles (Mk. 3:14, 15). After this solemn consecration of the twelve, he descended from the mountain-peak to a more level spot (Lk. 6:17), and there he sat down and delivered the "sermon on the mount" (Mt. 5:1-7:29; Lk. 6:20-49) to the assembled multitude. The mountain here spoken of was probably that known by the name of the "Horns of Hattin" (Kurun Hattin), a ridge running east and west, not far from Capernaum. It was afterwards called the "Mount of Beatitudes."