This sign then had a reference to what was future. But the sign given to Moses was retrospective, for the people more clearly saw that God had been their deliverer, because it had been predicted to Moses when yet in the desert that the Israelites would come there; and that place, even Mount Sinai, had been already destined for that worship which afterwards was presented to God. The people at the time considered this, and by calling to mind what had been predicted, they were more and more confirmed as to their faith in God’s favor. Such was also the sign mentioned here, This shall be a sign, says Jeremiah, even that God would deliver Pharaoh-hophrah into the hand of Nebuchadnezzar his enemy
Had any one then asked the Prophet why he spoke of the king of Egypt, he would have said, “Now indeed this sign remains as it were buried, its use is not seen; but God will in due time shew that I have been entrusted with his commands, for whatever I predict of the king of Egypt shall be fulfilled.” This sign was also added, for the thing seemed incredible, that is, that Egypt could be conquered, which was strongly fortified on every side. As, then, there was no entrance open for enemies, especially from Pelusium, the Jews thought that they dwelt, as they say, within the circle of the moon, and that they were placed beyond the reach of danger. Since, then, they confided in the protection of Egypt, and thought the land unassailable, this their confidence was laughed to scorn.
And the Prophet expressly mentions the surname of Pharaoh, which was Hophra, the meaning of which is not known to me; and it is probably an Egyptic word, for there is no such word in Hebrew: and it is not known whence the word Pharaoh has come. We know that all the kings of Egypt had this name, as the emperors of Rome were called Caesars, in memory of Julius Caesar. The kings of Egypt were in the same manner called Pharaohs. But each had his own name to distinguish him from the rest; and this king was called Hophra.
Now what the Prophet predicted, if we believe Josephus, was fulfilled about the fourth year after they had departed into Egypt. For Nebuchadnezzar went down again into Egypt, after having spoiled the Moabites and the Ammonites, and at length took possession of that kingdom. But it was a hateful message, when Jeremiah predicted the ruin of the kingdom. Nor is there a doubt, but that danger appeared before his eyes, when he saw that he addressed ungodly men, who a hundred times wished him to be destroyed. When therefore he dared to prophesy against the king, the whole people, and the land, we hence see how great must have been his firmness and his courage, still boldly to discharge his office; for he was not terrified by danger, but promulgated whatever God had committed to him. We then have here a singular example of magnanimity; for the Prophet hesitated not to risk his own life while obeying God.
By saying, I will deliver the king of Egypt into the hands of his enemies, and of them who seek his life, he intimates that there would be fatal enemies, though he speaks only of one enemy, but he connects the army with its head: I will deliver Pharaoh then into the hand of Nebuchadnezzar, the king of Babylon, as I have delivered Zedekiah into the hand of his enemy and of him who sought his life; as though he had said, “The condition of the king of Egypt will not be better than that of Zedekiah.”: For Zedekiah occupied that sacred throne of which God had testified, “Here will I dwell;” and further, “On the throne of David shall one of his posterity ever continue.”
We hence see, that the Prophet reasons from the greater to the less; for if God had not spared King Zedekiah, who was, as it were, a sacred person, nothing better could be hoped for as to the king of Egypt, who reigned only in a manner usual and common. The sum of what is said then is, that the Jews had been already sufficiently taught by facts how true his prophecies were; for he had predicted what at length happened to Zedekiah; but his word was not believed. “It is now the time,” he says, “when the Jews must know that I am God’s faithful servant, as God had added a proof in the case of Zedekiah, which ought to have remained fixed in their memory.” Now, if they thought that the king of Egypt was beyond danger, they ascribed great injustice to God, who had not delivered Zedekiah, who had been anointed in his name, and by his command. This then is the import of the passage.