18 

18:1  And I saw another angel coming down out of heaven - Termed another, with respect to him who "came down out of heaven," Rev 10:1. And the earth was enlightened with his glory - To make his coming more conspicuous. If such be the lustre of the servant, what images can display the majesty of the Lord, who has "thousand thousands" of those glorious attendants "ministering to him, and ten thousand times ten thousand standing before him?"

18:2  And he cried, Babylon is fallen - This fall was mentioned before, Rev 14:8; but is now declared at large. And is become an habitation - A free abode. Of devils, and an hold - A prison. Of every unclean spirit - Perhaps confined there where they had once practised all uncleanness, till the judgment of the great day. How many horrid inhabitants hath desolate Babylon! of invisible beings, devils, and unclean spirits; of visible, every unclean beast, every filthy and hateful bird.Suppose, then, Babylon to mean heathen Rome; what have the Romanists gained, seeing from the time of that destruction, which they say is past, these are to be its only inhabitants for ever.

19 

19:1  I heard a loud voice of a great multitude - Whose blood the great whore had shed. Saying, Hallelujah - This Hebrew word signifies, Praise ye Jah, or Him that is. God named himself to Moses, EHEIEH, that is, I will be, Exo 3:14; and at the same time, "Jehovah," that is, "He that is, and was, and is to come:" during the trumpet of the seventh angel, he is styled, "He that is and was," Rev 16:5; and not "He that is to come;" because his long - expected coming is under this trumpet actually present.At length he is styled, "Jah," "He that is;" the past together with the future being swallowed up in the present, the former things being no more mentioned, for the greatness of those that now are. This title is of all others the most peculiar to the everlasting God. The salvation - Is opposed to the destruction which the great whore had brought upon the earth. His power and glory - Appear from the judgment executed on her, and from the setting up his kingdom to endure through all ages.

19:2  For true and righteous are his judgments - Thus is the cry of the souls under the altar changed into a song of praise.

21 

21:21 Let them that are in the midst of it - Where Jerusalem stands (that is, they that are in Jerusalem) depart out of it, beforetheir retreat is cut off by the uniting of the forces near the city, and let not them that are in the adjacent countries by any means enter into it.

21:22 And things which are written - Particularly in Daniel.

21:24 They shall fall by the edge of the sword, and shall be led away captive - Eleven hundred thousand perished in the siege of Jerusalem, and above ninety thousand were sold for slaves.So terribly was this prophecy fulfilled! And Jerusalem shall be trodden by the Gentiles - That is, inhabited. So it was indeed.The land was sold, and no Jew suffered even to come within sight of Jerusalem. The very foundations of the city were ploughed up, and a heathen temple built where the temple of God had stood.The times of the Gentiles - That is, the times limited for their treading the city; which shall terminate in the full conversion of the Gentiles.

21:25 And there shall be - Before the great day, which was typified by the destruction of Jerusalem: signs - Different from those mentioned Luk 21:11, etc Mat 24:29; Mar 13:24.

21:28 Now when these things - Mentioned Luk 21:8, Luk 21:10, etc, begin to come to pass, look up with firm faith, and lift up your heads with joy: for your redemption out of many troubles draweth nigh, by God's destroying your implacable enemies.