2 Kings 4:38-41

Elisha now returned to Gilgal, and there was a famine in the land. One day as the group of prophets was seated before him, he said to his servant, “Put a large pot on the fire, and make some stew for the rest of the group.” One of the young men went out into the field to gather herbs and came back with a pocketful of wild gourds. He shredded them and put them into the pot without realizing they were poisonous. Some of the stew was served to the men. But after they had eaten a bite or two they cried out, “Man of God, there’s poison in this stew!” So they would not eat it. Elisha said, “Bring me some flour.” Then he threw it into the pot and said, “Now it’s all right; go ahead and eat.” And then it did not harm them.