Lk 1:78-79, Eph 2:1-5, Acts 26:16-18
In the Old Testament, Isaiah prophesied that God would open the eyes of the blind in the future. (Isa 42:16)
Isa 42:16 And I will bring the blind by a way that they knew not; I will lead them in paths that they have not known: I will make darkness light before them, and crooked things straight. These things will I do unto them, and not forsake them.
John the Baptist's father prophesied that the coming Christ would lead us out of darkness into the way of peace. (Luke 1:78-79)
Luke 1:78 Through the tender mercy of our God; whereby the dayspring from on high hath visited us, 79 To give light to them that sit in darkness and in the shadow of death, to guide our feet into the way of peace.
God raised us, who were children of wrath by nature, together with Christ. (Eph 2:1-5)
Eph 2:1 And you hath he quickened, who were dead in trespasses and sins;
2 Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience:
3 Among whom also we all had our conversation in times past in the lusts of our flesh, fulfilling the desires of the flesh and of the mind; and were by nature the children of wrath, even as others.
4 But God, who is rich in mercy, for his great love wherewith he loved us,
5 Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;)
Jesus had Paul preach the gospel, so that Israel and the Gentiles were turned from darkness to light and from the power of Satan to God. (Acts 26:16-18)
Acts 26:16 But rise, and stand upon thy feet: for I have appeared unto thee for this purpose, to make thee a minister and a witness both of these things which thou hast seen, and of those things in the which I will appear unto thee; 17 Delivering thee from the people, and from the Gentiles, unto whom now I send thee, 18 To open their eyes, and to turn them from darkness to light, and from the power of Satan unto God, that they may receive forgiveness of sins, and inheritance among them which are sanctified by faith that is in me.