Verse 18. - Because of the Chaldeans. They were afraid of being held responsible for the crime of Ishmael. And they had good reason for their alarm, as the Chaldeans would naturally look upon Ishmael as the representative of the Davidic dynasty, and the heir of that dynasty's claims to the loyalty of the Jews.

41:11-18 The success of villany must be short, and none can prosper who harden their hearts against God. And those justly lose comfort in real fears, who excuse themselves in sin by pretended fears. The removal of a prudent and peaceable ruler, and the succession of another who is rash and ambitious, affects the welfare of many. Only those are happy and steady who fear the Lord and walk in his ways.Because of the Chaldeans,.... Which clause some think should have been joined to Jeremiah 41:17. This is a reason given why they departed from Mizpah, and dwelt at the habitation of Chimham in the way to Egypt; and which is explained in the next words:

for they were afraid of them; at least this they pretended, that the Chaldeans would come upon them, and cut them off, and revenge themselves on them:

because Ishmael the son of Nethaniah had slain Gedaliah the son of Ahikam, whom the king of Babylon made governor in the land; no doubt it was provoking to them to hear that the viceroy or deputy governor of the king of Babylon was slain in this manner; and still more so, as there were many Chaldeans slain with him; but there was no reason to believe that the king of Babylon would carry his resentment against the Jews with Johanan, or take vengeance on them, who had so bravely appeared against the murderers, and had rescued the captives out of their hands: this seems only a pretence for their going into Egypt; for though they were promised safety in Judah by the Prophet Jeremiah, yet they were still for going into Egypt, as the following chapters show.