The streets of the city shall be full of boys and girls - The progeny shall be numerous, healthy, and happy. Their innocent gambols and useful exercises shall be a means of health, and a proof of happiness. To be healthy, children must have exercise. But they cannot take exercise, except in the way of play and diversion: ergo, such playfulness cannot be sinful. Let them be kept from evil words, lying, swearing, and scurrility; and all the rest may be innocent.

And the streets of the city shall be full of boys and girls,.... Denoting a large increase of inhabitants, in a literal sense; and may spiritually signify the large numbers of converts, of new born babes, who are regenerated by the grace and Spirit of God, and are accounted of by the Lord for a generation:

playing the streets thereof; being in health and rigour, and in great security. The Targum renders it, "singing" or "praising in the spacious places thereof"; singing the praises of God in Gospel strains; saying their Hosannas to the Son of David; rejoicing in the great salvation by Christ, and magnifying the grace of God, and setting forth the glories of it in psalms, hymns, and spiritual songs; see Matthew 11:16. In Jerusalem, literally taken, there were various streets, besides the street of the temple, which led to it, Ezra 10:9 mention is made of others in Jewish writings, as of the upper street (k), and of the street of the butchers, and of the street of those that dealt in wool (l).

(k) Misn. Shekalim, c. 8. sect. 1.((l) Misn. Erubin, c. 10. sect. 9.

And the streets of the city shall be full of boys and girls playing in the streets thereof.

5. boys and girls playing-implying security and a numerous progeny, accounted a leading blessing among the Jews. Contrast Jer 6:11; 9:21.

8:1-8 The sins of Zion were her worst enemies. God will take away her sins, and then no other enemies shall hurt her. Those who profess religion must adorn their profession by godliness and honesty. When become a city of truth and a mountain of holiness, Jerusalem is peaceable and prosperous. Verses 4,5, beautifully describe a state of great outward peace, attended with plenty, temperance, and contentment. The scattered Israelites shall be brought together from all parts. God will never leave nor forsake them in a way of mercy, for this he has promised them; and they shall never leave nor forsake him in a way of duty, as they have promised him. These promises were partly fulfilled in the Jewish church, betwixt the captivity and the time of Christ's coming; and they had fuller accomplishment in the gospel church; but the full import must be as to the future times of the Christian church, or the future restoration of the Jews. With men this is impossible, but with God all things are possible; so far are God's thoughts and ways above ours. In the present low state of vital godliness, we can hardly conceive that so complete a change can be made; but a change thus extensive and glorious, can be brought to pass by the almighty power of the new-creating Spirit, in less time than he was pleased to employ in creating the world. Let the hands of all who labour in the cause of the gospel be strong, serving the Lord in true holiness, assured that their labour shall not be in vain.