18. To open their eyes, and to turn them from darkness to light--rather, "that they may turn" (as in Ac 26:20), that is, as the effect of their eyes being opened. The whole passage leans upon Isa 61:1 (Lu 4:18).
      and from the power of Satan--Note the connection here between being "turned from darkness" and "from the power of Satan," whose whole power over men lies in keeping them in the dark: hence he is called "the ruler of the darkness of this world." See on 2Co 4:4.
      that they may receive forgiveness . . . and inheritance among the sanctified by faith that is in me--Note: Faith is here made the instrument of salvation at once in its first stage, forgiveness, and its last, admission to the home of the sanctified; and the faith which introduces the soul to all this is emphatically declared by the glorified Redeemer to rest upon Himself--"FAITH, even THAT WHICH IS IN ME." And who that believes this can refrain from casting his crown before Him or resist offering Him supreme worship?

JFB.