John Calvin's Bible Commentary
Jeremiah 41:16
The Prophet now shews, that though some kind of virtue appeared in John the son of Kareah, he was not yet of a right mind. He was an energetic and a discreet man, but he discovered his unbelief, when he led the remnant of the people into Egypt, while the Prophet was forbidding such a thing. He already knew that this was not lawful, but his obstinacy was two-fold more, when the Prophet repudiated his project, as we shall see. This passage then teaches us, that though the leaders of the forces, who had put Ishmael to flight, and avenged his perfidy, were men of courage, and shewed regard for the public good, they were destitute of faith: there was thus wanting in them the chief thing, that is piety and the fear of God.
Then the Prophet says, that John and the rest took the remnant of the people whom they had recovered from Ishmael, from Mizpah, not that they were recovered from that place, but that Ishmael had brought the unhappy people captives from Mizpah, as we have seen; but they had all been recovered at Gibeon, according to what is said at the end of the verse. But he says that they were valiant men, גברים , geberim, (he so calls them on account of their courage, for an explanation follows,) and men of war, המלחמה אנשי , anushi emelecheme. He then calls them valiant or brave, and afterwards he explains what that virtue was, even because they were warlike men. He says further, that there were women mixed with them, and children, and eunuchs, who once lived in the king’s court; and as we have before seen, there were among them the king’s daughters. Gedaliah then had collected together a considerable number of men, not only from the lower orders, but also from the higher class, whose wealth and rank were not common while the kingdom was standing.