4 "Listen to me, my people. Hear me, Israel, for my law will be proclaimed, and my justice will become a light to the nations. 5 My mercy and justice are coming soon. My salvation is on the way. My strong arm will bring justice to the nations. All distant lands will look to me and wait in hope for my powerful arm. 6 Look up to the skies above, and gaze down on the earth below. For the skies will disappear like smoke, and the earth will wear out like a piece of clothing. The people of the earth will die like flies, but my salvation lasts forever. My righteous rule will never end! 7 "Listen to me, you who know right from wrong, you who cherish my law in your hearts. Do not be afraid of people's scorn, nor fear their insults. 8 For the moth will devour them as it devours clothing. The worm will eat at them as it eats wool. But my righteousness will last forever. My salvation will continue from generation to generation."

9 Wake up, wake up, O Lord ! Clothe yourself with strength! Flex your mighty right arm! Rouse yourself as in the days of old when you slew Egypt, the dragon of the Nile. 10 Are you not the same today, the one who dried up the sea, making a path of escape through the depths so that your people could cross over? 11 Those who have been ransomed by the Lord will return. They will enter Jerusalem singing, crowned with everlasting joy. Sorrow and mourning will disappear, and they will be filled with joy and gladness. 12 "I, yes I, am the one who comforts you. So why are you afraid of mere humans, who wither like the grass and disappear? 13 Yet you have forgotten the Lord, your Creator, the one who stretched out the sky like a canopy and laid the foundations of the earth. Will you remain in constant dread of human oppressors? Will you continue to fear the anger of your enemies? Where is their fury and anger now? It is gone! 14 Soon all you captives will be released! Imprisonment, starvation, and death will not be your fate!

Matthew Henry's Commentary on Isaiah 51:4-14

Commentary on Isaiah 51:4-8

(Read Isaiah 51:4-8)

The gospel of Christ shall be preached and published. How shall we escape if we neglect it? There is no salvation without righteousness. The soul shall, as to this world, vanish like smoke, and the body be thrown by like a worn-out garment. But those whose happiness is in Christ's righteousness and salvation, will have the comfort of it when time and days shall be no more. Clouds darken the sun, but do not stop its course. The believer will enjoy his portion, while revilers of Christ are in darkness

Commentary on Isaiah 51:9-16

(Read Isaiah 51:9-16)

The people whom Christ has redeemed with his blood, as well as by his power, will obtain joyful deliverance from every enemy. He that designs such joy for us at last, will he not work such deliverance in the mean time, as our cases require? In this world of changes, it is a short step from joy to sorrow, but in that world, sorrow shall never come in view. They prayed for the display of God's power; he answers them with consolations of his grace. Did we dread to sin against God, we should not fear the frowns of men. Happy is the man that fears God always. And Christ's church shall enjoy security by the power and providence of the Almighty.