2 The captain of the guard took Jeremiah and said to him, "The Lord your God pronounced this disaster against this place. 3 The Lord has brought it about, and has done as he said. Because you sinned against the Lord and did not obey his voice, this thing has come upon you. 4 Now, behold, I release you today from the chains on your hands. If it seems good to you to come with me to Babylon, come, and I will look after you well, but if it seems wrong to you to come with me to Babylon, do not come. See, the whole land is before you; go wherever you think it good and right to go. 5 If you remain,[1] then return to Gedaliah the son of Ahikam, son of Shaphan, whom the king of Babylon appointed governor of the cities of Judah, and dwell with him among the people. Or go wherever you think it right to go." So the captain of the guard gave him an allowance of 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.