2 Kings 4:39-41

39Then one of them went out into the field to gather herbs, found a wild vine and picked from it a lapful of wild gourds. Then he came back and sliced them into the stew pot, for they didn’t know what they were.

40Then they served it for the men to eat. But it came to pass as they were still eating the stew, they cried out and said, “O man of God, there is death in the pot.” So they could not eat it.

41But he said, “Bring some flour,” and he threw it into the pot and said, “Serve it to the people and let them eat.” So there was nothing bad in the pot.