Commentaries
31:21-26 The way from the bondage of sin to the liberty of God's children, is a high-way. It is plain, it is safe; yet none are likely to walk in it, unless they set their hearts towards it. They are encouraged by the promise of a new, unheard-of, extraordinary thing; a creation, a work of Almighty power; the human nature of Christ, formed and prepared by the power of the Holy Ghost: and this is here mentioned as an encouragement to the Jews to return to their own land. And a comfortable prospect is given them of a happy settlement there. Godliness and honesty God has joined: let no man think to put them asunder, or to make the one atone for the want of the other. In the love and favour of God the weary soul shall find rest, and the sorrowful shall find joy. And what can we see with more satisfaction than the good of Jerusalem, and peace upon Israel?
21. waymarks—pillars to mark the road for the returning exiles. Caravans set up pillars, or pointed heaps of stones, to mark the way through the desert against their return. So Israel is told by God to mark the way by which they went in leaving their country for exile; for by the same way they shall return.
highway—(Isa 35:8, 10).