If those - If these. From the uniformity of God's operations in the material world, the prophet deduces the certainty of a similar uniformity in God's dealings with man in things spiritual.

A nation - A people. Israel has long ceased to be a nation, but it still exists as a numerous, influential, and distinct people. In Matthew 28:19-20 Jeremiah's prophecy receives its Christian application, and Israel becomes the Church, with the promise of perpetual existence. It has no national existence, but its members ought to be a strongly marked people, refusing to be merged in the world, while everywhere they pervade and influence it.

If those ordinances - As sure as the sun shall give light to the day, and the moon to the night, so surely shall the Jews continue to be a distinct people. The same thing is expressed in other words in the next verse. Hitherto this prophecy has been literally fulfilled; the Jews are still a distinct people from all the dwellers upon earth. Every attempt that has been made in any country to naturalize and unite them with the people of that country, has proved abortive. The well-circumstanced attempt made this year (1830) in England, when the strongest interest was excited in their behalf, has also utterly failed. And why? Because of God's purpose expressed in Jeremiah 31:35-37 of the Book of the Prophet Jeremiah.

If those ordinances depart from before me, saith the Lord,.... Of the sun, moon, and stars; should these leave their proper course, and not perform their several functions, or do the service appointed for them; should they desert their master, or disobey his orders, turn away from him, and pay no regard to the laws and rules he has set them:

then the seed of Israel shall also cease from being a nation before me for ever; but, as the former is impossible, so is the latter, The Jews ceased not from being a nation through their captivity in Babylon, nor through their destruction by the Romans; they continue a distinct nation and people to this day, though scattered throughout the nations of the world: though this rather refers to the spiritual Israel, the holy nation and peculiar people; Christ will have a seed to serve him as long as the sun and moon endure; his church shall continue to the end of the world; it is built on a rock; and the gates of hell cannot prevail against it.

If those ordinances depart from before me, saith the LORD, then the seed of Israel also shall cease from being a nation before me for ever.

31:36 Those ordinances - The ordinances of nature, which are God's establishments for the working of natural causes in their order.

36. a nation-Israel's national polity has been broken up by the Romans. But their preservation as a distinct people amidst violent persecutions, though scattered among all nations for eighteen centuries, unamalgamated, whereas all other peoples under such circumstances have become incorporated with the nations in which they have been dispersed, is a perpetual standing miracle (compare Jer 33:20; Ps 148:6; Isa 54:9, 10).

31:35-40 As surely as the heavenly bodies will continue their settled course, according to the will of their Creator, to the end of time, and as the raging sea obeys him, so surely will the Jews be continued a separate people. Words can scarcely set forth more strongly the restoration of Israel. The rebuilding of Jerusalem, and its enlargement and establishment, shall be an earnest of the great things God will do for the gospel church. The personal happiness of every true believer, as well as the future restoration of Israel, is secured by promise, covenant, and oath. This Divine love passes knowledge; and to those who take hold upon it, every present mercy is an earnest of salvation.