John Gill's Exposition of the Whole Bible
Jeremiah 41:2
Then arose Ishmael the son of Nethaniah, and the ten men that were with him,.... After they had eat and drank well, they rose up from their seats at table:
and smote Gedaliah the son of Ahikam the son of Shaphan with the sword,
and slew him; they all drew their swords and thrust at him, and were assisting in the murder of him; though it is probable that it was Ishmael that gave him the mortal wound, since the phrase, "and slew him", is singular. Josephus d says that Gedaliah prepared a splendid table, and made a sumptuous entertainment for them, and being drunk himself, which they observed, took the opportunity and slew him, and all at table with him:
whom the king Babylon had made governor over the land; which mentioned; both to aggravate the crime they were guilty of, and to observe the reason of it, and what it was that prompted them to it; for so the words may be rendered, "because the king of Babylon had made him governor over the land" e.
d Antiqu. l. 10. c. 9. sect. 4. e אשר הפקיד "quia illum praefecerat", Vatablus. So Ben Melech.