2 The captain of the guard took Jeremiah, and said to him, Yahweh your God pronounced this evil on this place; 3 and Yahweh has brought it, and done according as he spoke: because you have sinned against Yahweh, and have not obeyed his voice, therefore this thing has come on you. 4 Now, behold, I release you this day from the chains which are on your hand. If it seems good to you to come with me into Babylon, come, and I will take care of you; but if it seems bad to you to come with me into Babylon, don’t: behold, all the land is before you; where it seems good and right to you to go, there go. 5 Now while he was not yet gone back, Go back then, said he, to Gedaliah the son of Ahikam, the son of Shaphan, whom the king of Babylon has made governor over the cities of Judah, and dwell with him among the people; or go wherever it seems right to you to go. So the captain of the guard gave him food and a present, and let him go.
Matthew Henry's Commentary on Jeremiah 40:2-5
Commentary on Jeremiah 40:1-6
(Read Jeremiah 40:1-6)
The captain of the guard seems to glory that he had been God's instrument to fulfil, what Jeremiah had been God's messenger to foretell. Many can see God's justice and truth with regard to others, who are heedless and blind as to themselves and their own sins. But, sooner or later, all men shall be made sensible that their sin is the cause of all their miseries. Jeremiah has leave to dispose of himself; but is advised to go to Gedaliah, governor of the land under the king of Babylon. It is doubtful whether Jeremiah acted right in this decision. But those who desire the salvation of sinners, and the good of the church, are apt to expect better times from slight appearances, and they will prefer the hope of being useful, to the most secure situations without it.