I. That the people of God shall become both numerous and prosperous. Israel and Judah shall be replenished both with men and cattle, as if they were sown with the seed of both, v. 27. They shall increase and multiply like a field sown with corn; and this is the product of God's blessing (v. 23), for whom God blessed, to them he said, Be fruitful. This should be a type of the wonderful increase of the gospel-church. God will build them, and plant them, v. 28. He will watch over them to do them good; no opportunity shall be lost that may further their prosperity. Every thing for a long time had turned so much against them, and all occurrences did so transpire to ruin them, that it seemed as if God had watched over them to pluck up and to throw down; but now every thing that falls out shall happily fall in to strengthen and advance their interests. God will be as ready to comfort those that repent of their sins, and are humbled for them, as he is to punish those that continue in love with their sins, and are hardened in them.