Proverbs 26:8

By giving honor to a fool one arms him to do damage. This can happen, for example, by promoting him to a position of greater responsibility. The figure of binding a stone in a sling seems to suggest that the person doing the binding did not know how to operate a sling. People did not bind stones in slings but simply laid them in the sling so when the sling was slung the stone would fly out. Similarly one who expects a fool to accomplish something honorable does not know how things work. [Note: Whybray, The Book . . ., p. 152.]