"The Spirit of the Lord is on me, Because he has anointed me to preach good news to the poor. He has sent me to heal the brokenhearted, To proclaim release to the captives, Recovering of sight to the blind, To deliver those who are crushed,
אתגלו, "be ye revealed to the light" now because persons in prison are in darkness, and see no light, therefore they are represented as blind; and both are the case of sinners, they are in the prison of sin and of the law, and are blind, ignorant, and insensible of their state; until Christ both opens the prison, and sets them free, and opens their eyes, and gives them spiritual sight; when he says to the prisoners go forth, to them that are in darkness show yourselves, Isaiah 49:9