Ben Sira 22:7

7 Whoso teacheth a fool is as one that glueth a potsherd together, and as he that waketh one from a sound sleep.

Ben Sira 22:7 In-Context

5 She that is bold dishonoreth both her father and her husband, but they both shall despise her.

6 A tale out of season is as music in mourning, but stripes and correction in wisdom are never out of time.

7 Whoso teacheth a fool is as one that glueth a potsherd together, and as he that waketh one from a sound sleep.

8 He that telleth a tale to a fool speaketh to one in a slumber; when he hath told his tale, he will say, "What is the matter?"

9 If children live honestly and have wherewithal, they shall cover the baseness of their parents.