In the visions of the night, i.e. in that way or manner of visions which God affordeth to men by night, and in their sleep. See Gen_20:3Job_33:15,16 Mt 1:20 2:13,19 Ac 16:9 18:9, &c.
Jacob, Jacob; he doubles the name both in token of his friendship and familiarity with him, and to raise Jacob’s attention. Compare Gen_22:111Sa_3:10.