III. Gracious excitements and encouragements given to the people of God in Babylon to prepare for their return to their own land. Let them not tremble and lose their spirits; let them not trifle and lose their time; but with a firm resolution and a close application address themselves to their journey, v. 21, 22. 1. They must think of nothing but of coming back to their own country, out of which they had been driven: "Turn again, O virgin of Israel! a virgin to be again espoused to thy God; turn again to these thy cities; though they are laid waste and in ruins, they are thy cities, which thy God gave thee, and therefore turn again to them." They must be content in Babylon no longer than till they had liberty to return to Zion. 2. They must return the same way that they went, that the remembrance of the sorrows which attended them, or which their fathers had told them of, in such and such places upon the road, the sight of which would, by a local memory, put them in mind of them, might make them the more thankful for their deliverance. Those that have departed from God into the bondage of sin must return by the way in which they went astray, to the duties they neglected, must do their first works. 3. They must engage themselves and all that is within them in this affair: Set thy heart towards the highway; bring thy mind to it; consider thy duty, the interest, and go about it with a good-will. Note, The way from Babylon to Zion, from the bondage of sin to the glorious liberty of God's children, is a highway; it is right, it is plain, it is safe, it is well-tracked (Isa. xxxv. 8); yet none are likely to walk in it, unless they set their hearts towards it. 4. They must furnish themselves with all needful accommodations for the journey: Set thee up way-marks, and make thee high heaps or pillars; send before to have such set up in all places where there is any danger of missing the road. Let those that go first, and are best acquainted with the way, set up such directions for those that follow. 5. They must compose themselves for their journey: How long will thou go about, O backsliding daughter? Let not their minds fluctuate, or be uncertain about it, but resolve upon it; let them not distract themselves with care and fear; let them not seek about to creatures for assistance, not hurry hither and thither in courting them, which had often been an instance of their backsliding from God; but let them cast themselves upon God, and then let their minds be fixed. 6. They are encouraged to do this by an assurance God gives them that he would create a new thing (strange and surprising) in the earth (in that land), a woman shall compass a man. The church of God, that is weak and feeble as a woman, altogether unapt for military employments and of a timorous spirit (Isa. liv. 6), shall surround, besiege, and prevail against a mighty man. The church is compared to a woman, Rev. xii. 1. And, whereas we find armies compassing the camp of the saints (Rev. xx. 9), now the camp of the saints shall compass them. Many good interpreters understand this new thing created in that land to be the incarnation of Christ, which God an eye to in bringing them back to that land, and which had sometimes been given them for a sign, Isa. vii. 14; ix. 6. A woman, the virgin Mary, enclosed in her womb the Mighty One; for so Geber, the word here used, signifies; and God is called Gibbor, the Mighty God (ch. xxxii. 18), as also is Christ in Isa. ix. 6, where his incarnation is spoken of, as it is supposed to be here. He is El-Gibbor, the mighty God. Let this assure them that God would not cast off this people, for that blessing was to be among them, Isa. lxv. 8.