IV. He promises to do yet greater things for them than he had done in the days of old; so that they should not have reason to ask, in a way of complaint, as Gideon did, Where are all the wonders that our fathers told us of? for they should see them repeated, nay, they should see them outdone (v. 18): "Remember not the former things, from them to take occasion, as some do, to undervalue the present things, as if the former days were better than these; no, you may, if you will, comparatively forget them, and yet know enough by the events of your own day to convince you that the Lord is God alone; for, behold, the Lord will do a new thing, no way inferior, both for the wonder and the worth of the mercy, to the things of old." The best exposition of this is, Jer. xvi. 14, 15; xxiii. 7, 8. It shall no more be said, The Lord liveth that brought up the children of Israel out of the land of Egypt; that is an old thing, the remembrance of which will be in a manner lost in the new thing, in the new proof that the Lord liveth, for he brought up the children of Israel out of the land of the north. Though former mercies must not be forgotten, fresh mercies must in a special manner be improved. Now it springs forth, as it were a surprise upon you; you are like those that dream. Shall you now know it? And will you not own God's hand in it?