35 Thus says the Lord, who gives the sun for light by day and the fixed order of the moon and the stars for light by night, who stirs up the sea so that its waves roar--the Lord of hosts is his name: 36 "If this fixed order departs from before me, says the Lord, then shall the descendants of Israel cease from being a nation before me for ever." 37 Thus says the Lord: "If the heavens above can be measured, and the foundations of the earth below can be explored, then I will cast off all the descendants of Israel for all that they have done, says the Lord." 38 "Behold, the days are coming, says the Lord, when the city shall be rebuilt for the Lord from the tower of Han'anel to the Corner Gate. 39 And the measuring line shall go out farther, straight to the hill Gareb, and shall then turn to Go'ah. 40 The whole valley of the dead bodies and the ashes, and all the fields as far as the brook Kidron, to the corner of the Horse Gate toward the east, shall be sacred to the Lord. It shall not be uprooted or overthrown any more for ever."

Matthew Henry's Commentary on Jeremiah 31:35-40

Commentary on Jeremiah 31:35-40

(Read Jeremiah 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.