18 But God's not finished. He's waiting around to be gracious to you. He's gathering strength to show mercy to you. God takes the time to do everything right - everything. Those who wait around for him are the lucky ones. 19 Oh yes, people of Zion, citizens of Jerusalem, your time of tears is over. Cry for help and you'll find it's grace and more grace. The moment he hears, he'll answer. 20 Just as the Master kept you alive during the hard times, he'll keep your teacher alive and present among you. Your teacher will be right there, local and on the job, 21 urging you on whenever you wander left or right: "This is the right road. Walk down this road."
Matthew Henry's Commentary on Isaiah 30:18-21
Commentary on Isaiah 30:8-18
(Read Isaiah 30:8-18)
The Jews were the only professing people God then had in the world, yet many among them were rebellious. They had the light, but they loved darkness rather. The prophets checked them in their sinful pursuits, so that they could not proceed without fear; this they took amiss. But faithful ministers will not be driven from seeking to awaken sinners. God is the Holy One of Israel, and so they shall find him. They did not like to hear of his holy commandments and his hatred of sin; they desired that they might no more be reminded of these things. But as they despised the word of God, their sins undermined their safety. Their state would be dashed in pieces like a potter's vessel. Let us return from our evil ways, and settle in the way of duty; that is the way to be saved. Would we be strengthened, it must be in quietness and in confidence, keeping peace in our own minds, and relying upon God. They think themselves wiser than God; but the project by which they thought to save themselves was their ruin. Only here and there one shall escape, as a warning to others. If men will not repent, turn to God, and seek happiness in his favour and service, their desires will but hasten their ruin. Those who make God alone their confidence, will have comfort. God ever waits to be gracious to all that come to him by faith in Christ, and happy are those who wait for him.
Commentary on Isaiah 30:19-26
(Read Isaiah 30:19-26)
God's people will soon arrive at the Zion above, and then they will weep no more for ever. Even now they would have more comfort, as well as holiness, if they were more constant in prayer. A famine of bread is not so great a judgment as a famine of the word of God. There are right-hand and left-hand errors; the tempter is busy courting us into by-paths. It is happy if, by the counsels of a faithful minister or friend, or the checks of conscience, and the strivings of God the Spirit, we are set right when doubting, and prevented from going wrong. They shall be cured of their idolatry. To all true penitents sin becomes very hateful. This is shown daily in the conversion of souls, by the power of Divine grace, to the fear and love of God. Abundant means of grace, with the influences of the Holy Spirit, would be extended to places destitute of them. The effect of this should be comfort and joy to the people of God. Light, that is, knowledge, shall increase. This is the light which the gospel brought into the world, and which proclaims healing to the broken-hearted.