1. There shall be a present temporal salvation wrought out for the Jews in Babylon, or elsewhere in distress and captivity. This is promised (v. 18, 19) as a type of something further. When God's time shall come he will do his own work, though those fail that should forward it. It is here promised, (1.) That God will reckon with his enemies and will render to them according to their deeds, to the enemies of his people abroad, that have oppressed them, to the enemies of justice and truth at home, that have oppressed them, for they also are God's enemies; and, when the day of vengeance shall have come, he will deal with both as they have deserved, according to retribution (so the word is), the law of retributions (Rev. xiii. 10), or according to former retributions; as he has rendered to his enemies formerly, accordingly he will now repay, fury to his adversaries, recompence to his enemies; his fury shall not exceed the rules of justice, as men's fury commonly does. Even to the islands, that lie most remote, if they have appeared against him, he will repay recompence; for his hand shall find out all his enemies (Ps. xxi. 8), and his arrows reach them. Though God's people have behaved so ill that they do not deserve to be delivered, yet his enemies behave so much worse that they do deserve to be destroyed. (2.) That, whatever attempts the enemies of God's people may afterwards make upon them to disturb their peace, they shall be baffled and brought to nought: When the enemy shall come in like a flood, like a high spring-tide, or a land-flood, which threaten to bear down all before them without control, then the Spirit of the Lord by some secret undiscerned power shall lift up a standard against him, and so (as the margin reads it) put him to flight. He that has delivered will still deliver. When God's people are weak and helpless, and have no standard to lift up against the invading power, God will give a banner to those that fear him (Ps. lx. 4), will by his Spirit lift up a standard, which will draw multitudes together to appear on the church's behalf. Some read it, He shall come (the name of the Lord, and his glory, before foreseen of the Messiah promised) like a straight river, the Spirit of the Lord lifting him up for an ensign. Christ by the preaching of his gospel shall cover the earth with the knowledge of God as with the waters of a flood, the Spirit of the Lord setting up Christ as a standard to the Gentiles, ch. xi. 10. (3.) That all this should redound to the glory of God and the advancement of religion in the world (v. 19): So shall they fear the name of the Lord and his glory in all nations that lie eastward or westward. The deliverance of the Jews out of captivity, and the destruction brought on their oppressors, would awaken multitudes to enquire concerning the God of Israel, and induce them to serve and worship him and enlist themselves under the standard which the Spirit of the Lord shall lift up. God's appearances for his church shall occasion the accession of many to it. This had its full accomplishment in gospel times, when many came from the east and west, to fill up the places of the children of the kingdom that were cast out, when there were set up eastern and western churches, Matt. viii. 11.