40:7-16 Jeremiah had never in his prophecies spoken of any good days for the Jews, to come immediately after the captivity; yet Providence seemed to encourage such an expectation. But how soon is this hopeful prospect blighted! When God begins a judgment, he will complete it. While pride, ambition, or revenge, bears rule in the heart, men will form new projects, and be restless in mischief, which commonly ends in their own ruin. Who would have thought, that after the destruction of Jerusalem, rebellion would so soon have sprung up? There can be no thorough change but what grace makes. And if the miserable, who are kept in everlasting chains for the judgment of the great day, were again permitted to come on earth, the sin and evil of their nature would be unchanged. Lord, give us new hearts, and that new mind in which the new birth consists, since thou hast said we cannot without it see thy heavenly kingdom.

9. Fear not—They were afraid that they should not obtain pardon from the Chaldeans for their acts. He therefore assured them of safety by an oath.

serve—literally, "to stand before" (Jer 40:10; Jer 52:12), that is, to be at hand ready to execute the commands of the king of Babylon.