Here, I. God's people are stirred up to appear vigorous for their own deliverance, v. 1, 2. They had desired that God would awake and put on his strength, ch. li. 9. Here he calls upon them to awake and put on their strength, to bestir themselves; let them awake from their despondency, and pluck up their spirits, encourage themselves and one another with the hope that all will be well yet, and no longer succumb and sink under their burden. Let them awake from their distrust, look above them, look about them, look into the promises, look into the providences of God that were working for them, and let them raise their expectations of great things from God. Let them awake from their dullness, sluggishness, and incogitancy, and raise up their endeavours, not to take any irregular courses for their own relief, contrary to the law of nations concerning captives, but to use all likely means to recommend themselves to the favour of the conqueror and make an interest with him. God here gives them an assurance, 1. That they should be reformed by their captivity: There shall no more come into thee the uncircumcised and the unclean (v. 1); their idolatrous customs should be no more introduced, or at least not harboured; for when by the marriage of strange wives, in Ezra's time and Nehemiah's, the unclean crept in, they were soon by the vigilance and zeal of the magistrates expelled again, and care was taken that Jerusalem should be a holy city. Thus the gospel Jerusalem is purified by the blood of Christ and the grace of God, and made indeed a holy city. 2. That they should be relieved and rescued out of their captivity, that the bands of their necks should be loosed, that they should not now be any longer oppressed, nay, that they should not be any more invaded, as they had been: There shall no more come against thee (so it may be read) the uncircumcised and the clean. The heathen shall not again enter into God's sanctuary and profane his temple, Ps. lxxix. 1. This must be understood with a condition. If they keep close to God, and keep in with him, God will keep off, will keep out of the enemy; but, if they again corrupt themselves, Antiochus will profane their temple and the Romans will destroy it. However, for some time they shall have peace. And to this happy change, now approaching, they are here called to accommodate themselves. (1.) Let them prepare for joy: "Put on thy beautiful garments, no longer to appear in mourning weeds and the habit of thy widowhood. Put on a new face, a smiling countenance, now that a new and pleasant scene begins to open." The beautiful garments were laid up then, when the harps were hung on the willow trees; but, now there is occasion for both, let both be resumed together. "Put on thy strength, and, in order to that, put on thy beautiful garments, in token of triumph and rejoicing." Note, The joy of the Lord will be our strength (Neh. viii. 10), and our beautiful garments will serve for armour of proof against the darts of temptation and trouble. And observe, Jerusalem must put on her beautiful garments when she becomes a holy city, for the beauty of holiness is the most amiable beauty, and the more holy we are the more cause we have to rejoice. (2.) Let them prepare for liberty: "Shake thyself from the dust in which thou hast lain, and into which thy proud oppressors have trodden thee (ch. li. 23), or into which thou hast in thy extreme sorrow rolled thyself." Arise, and set up; so it may be read. "O Jerusalem! prepare to get clear of all the marks of servitude thou hast been under and to shift thy quarters: Loose thyself from the bands of thy neck; be inspired with generous principles and resolutions to assert thy own liberty." The gospel proclaims liberty to those who were bound with fears and makes it their duty to take hold of their liberty. Let those who have been weary and heavily laden under the burden of sin, finding relief in Christ, shake themselves from the dust of their doubts and fears and loose themselves from those bands; for, if the Son make them free, they shall be free indeed.