19 Your dead will come back; their dead bodies will come to life again. Those in the dust, awaking from their sleep, will send out a song; for your dew is a dew of light, and the earth will give birth to the shades.

20 Come, my people, into your secret places, and let your doors be shut: keep yourself safe for a short time, till his wrath is over. 21 For the Lord is coming out of his place to send punishment on the people of the earth for their evil-doing: the earth will let the blood drained out on her be seen, and will keep her dead covered no longer.

Matthew Henry's Commentary on Isaiah 26:19-21

Commentary on Isaiah 26:12-19

(Read Isaiah 26:12-19)

Every creature, every business, any way serviceable to our comfort, God makes to be so; he makes that work for us which seemed to make against us. They had been slaves of sin and Satan; but by the Divine grace they were taught to look to be set free from all former masters. The cause opposed to God and his kingdom will sink at last. See our need of afflictions. Before, prayer came drop by drop; now they pour it out, it comes now like water from a fountain. Afflictions bring us to secret prayer. Consider Christ as the Speaker addressing his church. His resurrection from the dead was an earnest of all the deliverance foretold. The power of his grace, like the dew or rain, which causes the herbs that seem dead to revive, would raise his church from the lowest state. But we may refer to the resurrection of the dead, especially of those united to Christ.

Commentary on Isaiah 26:20-21

(Read Isaiah 26:20-21)

When dangers threaten, it is good to retire and lie hid; when we commend ourselves to God to hide us, he will hide us either under heaven or in heaven. Thus we shall be safe and happy in the midst of tribulations. It is but for a short time, as it were for a little moment; when over, it will seem as nothing. God's place is the mercy-seat; there he delights to be: when he punishes, he comes out of his place, for he has no pleasure in the death of sinners. But there is hardly any truth more frequently repeated in Scripture, than God's determined purpose to punish the workers of iniquity. Let us keep close to the Lord, and separate from the world; and let us seek comfort in secret prayer. A day of vengeance is coming on the world, and before it comes we are to expect tribulation and suffering. But because the Christian looks for these things, shall he be restless and dismayed? No, let him repose himself in his God. Abiding in him, the believer is safe. And let us wait patiently the fulfilling of God's promises.