2 Kings 4:38-41

Elisha came back to Gilgal during a famine in the land. The sons of the prophets were sitting before him, and he said to his servant, “Put on the large pot and cook stew for the sons of the prophets.” Then one [of them] went into the field to gather herbs, and found a wild vine and gathered from it a lapful of wild gourds, and came and cut them up into the pot of stew, although they did not know what they were. So they served it for the men to eat. But as they ate the stew, they cried out, “O man of God, there is death in the pot.” And they could not eat it. But he said, “Bring flour.” And he threw it into the pot and said, “Serve it for the people so that they may eat.” Then there was nothing harmful in the pot.