Ecclesiastes 10

Just a little folly can decrease the value of wisdom. For example, a wise person can end his opportunity to provide wisdom to others by giving foolish advice just once. This, too, is unfortunate, but it is a fact of life. The theme expressed in Ecclesiastes 9:17-18 is elaborated in Ecclesiastes 10:1-20. [Note: See Graham S. Ogden, "Qoheleth IX 17-X 20: Variations on the Theme of Wisdom’s Strength and Vulnerability," Vetus Testamentum 30 (1980):27-37, reprinted in Zuck, ed., Reflecting with . . ., pp. 331-40.]

"A man may commit one sin, and this can destroy a lifetime of virtue." [Note: Laurin, p. 592.]