Jeremiah 29:3

This is the substance of the message, which the Prophet, no doubt, explained to them at large; but here he touches but briefly on what he wrote to the captives, even that they were patiently to endure their exile until the time of their deliverance, which was not to be such as many imagined, but such as God had fixed. Well known indeed at that time was Jeremiah’s prophecy, not only in Judea, but also to the captives, that their exile could not be completed in a shorter time than seventy years.

It is said that he sent his letter by the hand of the king’s ambassadors. It is probable that this was done by the permission of Zedekiah; for there is no doubt but that in sending his ambassadors he intended to obtain favor with King Nebuchadnezzar, by whose nod he had come to the throne; for he was not of such dignity as to be made king, though of the royal seed, had not Nebuchadnezzar thought that it would be more advantageous to himself. For had he appointed any other governor over the Jews, a sedition might have been easily raised; he therefore intended in a measure to pacify them, for he knew that they were a very refractory people. However, Zedekiah ruled only by permission, not through his own power, nor on account of his wealth, but through the good pleasure of a conqueror. He then sent his ambassadors to promise all kinds of homage, and to know what was to be done in future. As, then, he did not wish the return of Jeconiah, he permitted his ambassadors to carry the letter of Jeremiah, not indeed that he wished to obey God. It was not, then, owing to any sincere regard for religion, but because he thought that it would be advantageous to him, that the Jews should remain in Chaldea till the death of Jeconiah; for he thus hoped that his kingdom would be confirmed, for Jeconiah was, as it were, his rival. Nor is there a doubt, but that Nebuchadnezzar wished to hold Zedekiah bound by this fetter; for he could any day restore Jeconiah, who was his captive, to his former state.