2 Samuel 17:18-19

18But a boy did see them, and he told Absalom; so the two of them left quickly and came to the house of a man 1in Bahurim, who had a well in his courtyard, and they went down 2into it.

19And 3the woman 4took a cover and spread it over the well’s mouth and scattered barley meal on it, so that nothing was known.