3. The great intentions of this commission speak abundance of comfort to the children of men. He was given for a covenant of the people, for a mediator, or guarantee, of the covenant of grace, which is all summed up in him. God, in giving us Christ, has with him freely given us all the blessings of the new covenant. Two glorious blessings Christ, in his gospel, brings with him to the Gentile world—light and liberty. (1.) He is given for a light to the Gentiles, not only to reveal to them what they were concerned to know, and which otherwise they could not have known, but to open the blind eyes, that they might know it. By his Spirit in the word he presents the object; by his Spirit in the heart he prepared the organ. When the gospel came light came, a great light, to those that sat in darkness, Matt. iv. 16; John iii. 19. And St. Paul was sent to the Gentiles to open their eyes, Acts xxvi. 18. Christ is the light of the world. (2.) He is sent to proclaim liberty to the captives, as Cyrus did, to bring out the prisoners; not only to open the prison-doors, and give them leave to go out, which was all that Cyrus could do, but to bring them out, to induce and enable them to make use of their liberty, which none did but those whose spirits God stirred up. This Christ does by his grace.