Charles Ellicott Commentary 2 Kings 4:41

"But he said, Then bring meal. And he cast it into the pot; and he said, Pour out for the people, that they may eat. And there was no harm in the pot." — 2 Kings 4:41 (ASV)

Then bring meal. —Keil says, “the meal was only the material basis for the spiritual activity which went out from Elisha, and made the poisonous food wholesome.” Thenius, however, supposes that “the meal softened the bitterness, and counteracted the drastic effect.” But Reuss appears to be right in saying, “by mistake a poisonous (not merely a bitter) plant had been put into the pot, and the prophet neutralizes the poison by means of an antidote whose natural properties could never have had that effect.” The “meal” here, therefore, corresponds to the “salt” in 2 Kings 2:21.

And he said, Pour out. —The Septuagint adds, to Gehazi, his servant; probably a gloss.