Isaiah 21

1This is the burden against the Desert by the Sea: Like whirlwinds sweeping through the Negev, an invader comes from the desert, from a land of terror. 2A dire vision is declared to me: “The traitor still betrays, and the destroyer still destroys. Go up, O Elam! Lay siege, O Media! I will put an end to all her groaning.” 3Therefore my body is filled with anguish. Pain grips me, like the pains of a woman in labor. I am bewildered to hear, I am dismayed to see. 4My heart falters; fear makes me tremble. The twilight of my desire has turned to horror. 5They prepare a table, they lay out a carpet, they eat, they drink! Rise up, O princes, oil the shields! 6For this is what the Lord says to me: “Go, post a lookout and have him report what he sees. 7When he sees chariots with teams of horsemen, riders on donkeys, riders on camels, he must be alert, fully alert.” 8Then the lookout shouted: “Day after day, my lord, I stand on the watchtower; night after night I stay at my post. 9Look, here come the riders, horsemen in pairs.” And one answered, saying: “Fallen, fallen is Babylon! All the images of her gods lie shattered on the ground!” 10O my people, crushed on the threshing floor, I tell you what I have heard from the LORD of Hosts, the God of Israel. 11This is the burden against Dumah: One calls to me from Seir, “Watchman, what is left of the night? Watchman, what is left of the night?” 12The watchman replies, “Morning has come, but also the night. If you would inquire, then inquire. Come back yet again.” 13This is the burden against Arabia: In the thickets of Arabia you must lodge, O caravans of Dedanites. 14Bring water for the thirsty, O dwellers of Tema; meet the refugees with food. 15For they flee from the sword— the sword that is drawn— from the bow that is bent, and from the stress of battle. 16For this is what the Lord says to me: “Within one year, as a hired worker would count it, all the glory of Kedar will be gone. 17The remaining archers, the warriors of Kedar, will be few.” For the LORD, the God of Israel, has spoken.

Matthew Henry's Commentary

The taking of Babylon. (1-10) Of the Edomites. (11,12) Of the Arabs. (13-17) 1-10 Babylon was a flat country, abundantly watered. The destruction of Babylon, so often prophesied of by Isaiah, was typical of the destruction of the great foe of the New Testament church, foretold in the Revelation. To the poor oppressed captives it would be welcome news; to the proud oppressors it would be grievous. Let this check vain mirth and sensual pleasures, that we know not in what heaviness the mirth may end. Here is the alarm given to Babylon, when forced by Cyrus. An ass and a camel seem to be the symbols of the Medes and Persians. Babylon's idols shall be so far from protecting her, that they shall be broken down. True believers are the corn of God's floor; hypocrites are but as chaff and straw, with which the wheat is now mixed, but from which it shall be separated. The corn of God's floor must expect to be threshed by afflictions and persecutions. God's Israel of old was afflicted. Even then God owns it is his still. In all events concerning the church, past, present, and to come, we must look to God, who has power to do any thing for his church, and grace to do every thing that is for her good. 11,12 God's prophets and ministers are as watchmen in the city in a time of peace, to see that all is safe. As watchmen in the camp in time of war, to warn of the motions of the enemy. After a long sleep in sin and security, it is time to rise, to awake out of sleep. We have a great deal of work to do, a long journey to go; it is time to be stirring. After a long dark night is there any hope of the day dawning? What tidings of the night? What happens to-night? We must never be secure. But many make curious inquiries of the watchmen. They would willingly have nice questions solved, or difficult prophecies interpreted; but they do not seek into the state of their own souls, about the way of salvation, and the path of duty. The watchman answers by way of prophecy. There comes first a morning of light, and peace, and opportunity; but afterward comes a night of trouble and calamity. If there be a morning of youth and health, there will come a night of sickness and old age; if a morning of prosperity in the family, in the public, yet we must look for changes. It is our wisdom to improve the present morning, in preparation for the night that is coming after it. Inquire, return, come. We are urged to do it quickly, for there is no time to trifle. Those that return and come to God, will find they have a great deal of work to do, and but little time to do it in. 13-17 The Arabians lived in tents, and kept cattle. A destroying army shall be brought upon them, and make them an easy prey. We know not what straits we may be brought into before we die. Those may know the want of necessary food who now eat bread to the full. Neither the skill of archers, nor the courage of mighty men, can protect from the judgments of God. That is poor glory, which will thus quickly come to nothing. Thus hath the Lord said to me; and no word of his shall fall to the ground. We may be sure the Strength of Israel will not lie. Happy are those only whose riches and glory are out of the reach of invaders; all other prosperity will speedily pass away.