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. To open their eyes - To be the instrument of informing their understanding in the things of God.
To turn them from darkness to light - From heathenism and superstition to the knowledge and worship of the true God.
From the power of Satan unto God - Της εξουσιας του Σατανα, From the authority and domination of Satan; for as the kingdom of darkness is his kingdom, so those who live in this darkness are under his dominion; and he has authority and right over them. The blessed Gospel of Christ is the means of bringing the soul from this state of spiritual darkness and wretchedness to the light and liberty of the children of God; and thus they are brought from under the power and authority of Satan, to be under the power and authority of God.
That they may receive forgiveness of sins - That all their sins may be pardoned, and their souls sanctified; for nothing less is implied in the phrase, αφεσις ἁμαρτιων, which signifies the taking away or removal of sins.
And inheritance - By remission of sins, i.e. the removal of the guilt and pollution of sin, they become children of God; and, if children, then heirs; for the children of the heavenly family shall alone possess the heavenly estate. And as the inheritance is said to be among them that are Sanctified, this is a farther proof that αφεσις ἁμαρτιων signifies, not only the forgiveness of sins, but also the purification of the heart.
By faith that is in me - By believing on Christ Jesus, as dying for their offenses, and rising again for their justification. Thus we see that not only this salvation comes through Christ, but that it is to be received by faith; and, consequently, neither by the merit of works, nor by that of suffering.