IV. He shows what shall be the happy effects of this blessed change. 1. It shall have a happy effect upon the people of God themselves, for it shall bring them to an ingenuous repentance for their sins (v. 31): Then shall you remember your own evil ways and shall loathe yourselves. See here what sin is; it is an abomination, a loathsome thing, that abominable thing which the Lord hates. See what is the first step towards repentance; it is remembering our own evil ways, reflecting seriously upon the sins we have committed and being particular in recapitulating them. We must remember against ourselves not only our gross enormities, our own evil ways, but our defects and infirmities, our doings that were not good, not so good as they should have been; not only our direct violations of the law, but our coming short of it. See what is evermore a companion of true repentance, and that is self-loathing, a holy shame and confusion of face: "You shall loathe yourselves in your own sight, seeing how loathsome you have made yourselves in the sight of God." Self-love is at the bottom of sin, which we cannot but blush to see the absurdity of; but our quarrelling with ourselves is in order to our being, upon good grounds, reconciled to ourselves. And, lastly, see what is the most powerful inducement to an evangelical repentance, and that is a sense of the mercy of God; when God settles them in the midst of plenty, then they shall loathe themselves for their iniquities. Note, The goodness of God should overcome our badness and lead us to repentance. The more we see of God's readiness to receive us into favour upon our repentance the more reason we shall see to be ashamed of ourselves that we could ever sin against so much love. That heart is hard indeed that will not be thus melted. 2. It shall have a happy effect upon their neighbours, for it shall bring them to a more clear knowledge of God (v. 36): "Then the heathen that are left round about you, that spoke ignorantly of God (for so all those do that speak ill of him) when they saw the land of Israel desolate, shall begin to know better, and to speak more intelligently of God, being convinced that he is able to rebuild the most desolate cities and to replant the most desolate countries, and that, though the course of his favours to his people may be obstructed for a time, they shall not be cut off for ever." They shall be made to know the truth of divine revelation by the exact agreement which they shall discern between God's word which he has spoken to Israel and his works which he has done for them: I the Lord have spoken it, and I will do it. With us saying and doing are two things, but they are not so with God.