1. The grounds upon which God's favourable intentions to his people were built and on which they might build their expectations from him. He will deliver them out of captivity; for, (1.) They are his servants, and therefore he has a just quarrel with those that detain them. Let my people go, that they may serve me. The servants of the King of kings are under special protection. (2.) He formed them into a people, formed them from the womb, v. 24. From the first beginning of their increase into a nation they were under his particular care and government, more than any other people; their national constitution was of his framing, and his covenant with them was the charter by which they were incorporated. They are his, and he will save them. (3.) He has redeemed them formerly, has many a time redeemed them out of great distress, and he is still the same, in the same relation to them, has the same concern for them. "Therefore return unto me, for I have redeemed thee, v. 22. Whither wilt thou go, but to me?" Having redeemed them, as well as formed them, he has acquired a further title to them and propriety in them, which is a good reason why they should dutifully return to him and why he will graciously return to them. The Lord has redeemed Jacob; he is about to do it (v. 23); he has determined to do it; for he is the Lord their Redeemer, v. 24. Note, The work of redemption which God has by his Son wrought for us encourages us to hope for all promised blessings from him. He that has redeemed us at so vast an expense will not lose his purchase. (4.) He has glorified himself in them (v. 23), and therefore will do so still, John xii. 28. It is matter of comfort to us to see God's glory interested in the deliverances of the church; for therefore he will certainly redeem Jacob, because thus he will glorify himself. And this assures us that he will perfect the redemption of his saints by Jesus Christ, because there is a day set when he will be glorified and admired in them all. (5.) He has pardoned their sins, which were the cause of their calamity and the only obstruction to their deliverance, v. 22. Therefore he will break the yoke of captivity from off their necks, because he has blotted out, as a thick cloud, their transgressions. Note, [1.] Our transgressions and our sins are as a cloud, a thick cloud; they interpose between heaven and earth, and for a time suspend and intercept the correspondence between the upper and lower world (sin separates between us and God, ch. lix. 2); they threaten a storm, a deluge of wrath, as thick clouds do, which God will rain upon sinners. Ps. xi. 6. [2.] When God pardons sin he blots out this cloud, this thick cloud, so that the intercourse with heaven is laid open again. God looks down upon the soul with favour; the soul looks up to him with pleasure. The cloud is scattered by the influence of the Sun of righteousness. It is only through Christ that sin is pardoned. When sin is pardoned, like a cloud that is scattered, it appears no more, it is quite gone. The iniquity of Jacob shall be sought for, and not found, Jer. l. 20. And the comforts that flow into the soul when sin is pardoned are like the clear shining after clouds and rain.