Yet I will distress Ariel - The reference here is doubtless to the siege which God says Isaiah 29:3 he would bring upon the guilty and formal city.

And there shall be heaviness and sorrow - This was true of the city in the siege of Sennacherib, to which this probably refers. Though the city was delivered in a sudden and remarkable manner (see the note at Isaiah 29:7-8), yet it was also true that it was reduced to great distress (see Isaiah 36; 37)

And it shall be unto me as Ariel - This phrase shows that in Isaiah 29:1 Jerusalem is called 'Ariel,' because it contained the great altar, and was the place of sacrifice. The word "Ariel" here is to be understood in the sense "of the hearth of the great altar;" and the meaning is, 'I will indeed make Jerusalem like the great altar; I will make it the burning place of wrath where my enemies shall be consumed as if they were on the altar of burnt sacrifice.' Thus in Isaiah 30:9, it is said of Yahweh that his 'fire is in Zion, and his furnace in Jerusalem.' This is a strong expression, denoting the calamity that was approaching; and though the main reference in this whole passage is to the distress that would come upon them in the invasion of Sennacherib, yet there is no impropriety in supposing that there was presented to the mind of the prophet in vision the image of the total ruin that would come yet upon the city by the Chaldeans - when the temple, the palaces, and the dwellings of the magnificent city of David would be in flames, and like a vast blazing altar consuming that which was laid upon it.

There shall be heaviness and sorrow "There shall be continual mourning and sorrow" - Instead of your present joy and festivity.

And it shall be unto me as Ariel "And it shall be unto me as the hearth of the great altar" - That is, it shall be the seat of the fire of God; which shall issue from thence to consume his enemies. See note on Isaiah 29:1 (note). Or, perhaps, all on flame; as it was when taken by the Chaldeans; or covered with carcasses and blood, as when taken by the Romans: an intimation of which more distant events, though not immediate subjects of the prophecy, may perhaps be given in this obscure passage.

Yet I will distress Ariel,.... Or "straiten" it, by causing it to be besieged; and this he would do, notwithstanding their yearly sacrifices, and their observance of their solemn feasts, and other ceremonies of the law, in which they placed their confidence, and neglected weightier matters:

and there shall be heaviness and sorrow; on account of the siege; by reason of the devastations of the enemy without, made on all the cities and towns in Judea round about; and because of the famine and bloodshed in the city:

and it shall be unto me as Ariel; the whole city shall be as the altar; as that was covered with the blood and carcasses of slain beasts, so this with the blood and carcasses of men; and so the Targum,

"and I will distress the city where the altar is, and it shall be desolate and empty; and it shall be surrounded before me with the blood of the slain, as the altar is surrounded with the blood of the holy sacrifices on a solemn feast day all around;''

so Jarchi and Kimchi.

Yet I will distress Ariel, and there shall be heaviness and sorrow: and it shall be to me {c} as Ariel.

(c) Your city will be full of blood as an altar on which they sacrifice.

2. Yet-rather, "Then."

heaviness . sorrow-rather, preserving the Hebrew paronomasia, "groaning" and "moaning."

as Ariel-either, "the city shall be as a lion of God," that is, it shall emerge from its dangers unvanquished; or "it shall be as the altar of burnt offering," consuming with fire the besiegers (Isa 29:6; Isa 30:30; 31:9; Le 10:2); or best, as Isa 29:3 continues the threat, and the promise of deliverance does not come till Isa 29:4, "it shall be like a hearth of burning," that is, a scene of devastation by fire [G. V. Smith]. The prophecy, probably, contemplates ultimately, besides the affliction and deliverance in Sennacherib's time, the destruction of Jerusalem by Rome, the dispersion of the Jews, their restoration, the destruction of the enemies that besiege the city (Zec 14:2), and the final glory of Israel (Isa 29:17-24).

29:1-8 Ariel may signify the altar of burnt-offerings. Let Jerusalem know that outward religious services will not make men free from judgements. Hypocrites never can please God, nor make their peace with him. God had often and long, by a host of angels, encamped round about Jerusalem for protection and deliverance; but now he fought against it. Proud looks and proud language shall be brought down by humbling providences. The destruction of Jerusalem's enemies is foretold. The army of Sennacherib went as a dream; and thus the multitudes, that through successive ages fight against God's altar and worship, shall fall. Speedily will sinners awake from their soothing dreams in the pains of hell.