lofty. lifted up. Same word as Isaiah 6:1 ("exalted One").
That inhabiteth. inhabiting.
Related Commentaries of Isaiah 57:15
Isaiah 57:15
15 For thus saith the high and lofty One that inhabiteth eternity, whose name is Holy; I dwell in the high and holy place, with him also that is of a contrite and humble spirit, to revive the spirit of the humble, and to revive the heart of the contrite ones.