5 Pharaoh's army was come forth out of Egypt; and when the Chaldeans who were besieging Jerusalem heard news of them, they broke up from Jerusalem.
*Minor differences ignored. Grouped by changes, with first version listed as example.
Then - And. Pharaoh-Hophra Jeremiah 44:30, the Apries of Herodotus, probably withdrew without giving Nebuchadnezzar battle. After a reign of 25 years, he was dethroned by Amasis, but allowed to inhabit his palace at Sais, where finally he was strangled.
Then Pharaoh's army - This was Pharaoh-hophra or Apries, who then reigned in Egypt in place of his father Necho. See Ezekiel 29:6, etc. Nebuchadnezzar, hearing that the Egyptian army, on which the Jews so much depended, was on their march to relieve the city, suddenly raised the siege, and went to meet them. In the interim Zedekiah sent to Jeremiah to inquire of the Lord to know whether they might consider themselves in safety.
Then Pharaoh's army had (e) come from Egypt: and when the Chaldeans that besieged Jerusalem heard tidings of them, they departed from Jerusalem.
(e) To help the Jews.
Then Pharaoh's army was come forth out of Egypt,.... At the time the above message was sent to Jeremiah. Zedekiah, though he had took an oath of homage to the king of Babylon, rebelled against him, and entered into a league with the king of Egypt, to whom he sent for succours in his distress; and who, according to agreement, sent his army out of Egypt to break up the siege of Jerusalem; for though the king of Egypt came no more in person out of his land, after his defeat at Carchemish by Nebuchadnezzar, in the fourth year of Jehoiakim, Jeremiah 46:2; yet he sent his army to the relief of Jerusalem:
and when the Chaldeans that besieged Jerusalem; which was in the ninth year of Zedekiah's reign that they first besieged it, and is the time here referred to, Jeremiah 39:1;
heard tidings of them; the Egyptian army, and of its coming out against them; the rumour of which might be spread by the Jews themselves, to intimidate them; or which might come to them by spies they had in all parts to give them intelligence of what was doing; and what they had was good and certain, and on which they acted:
they departed from Jerusalem: not through fear, but to meet the Egyptian army, and give them battle, before they could be joined by any considerable force of the Jews. It was at this time the covenant was broken about the manumission of servants, Jeremiah 34:10; which conduct ill agrees with their desire of the prophet's prayer.
After this temporary diversion, caused by Pharaoh in favor of Jerusalem, the Egyptians returned no more to its help (2-Kings 24:7). Judea had the misfortune to lie between the two great contending powers, Babylon and Egypt, and so was exposed to the alternate inroads of the one or the other. Josiah, taking side with Assyria, fell in battle with Pharaoh-necho at Megiddo (2-Kings 23:29). Zedekiah, seeking the Egyptian alliance in violation of his oath, was now about to be taken by Nebuchadnezzar (2-Chronicles 36:13; Ezekiel 17:15, Ezekiel 17:17).
*More commentary available at chapter level.