18. A man void of understanding striketh hands, and becometh surety in the presence of his friend.
19. He loveth transgression that loveth strife: and he that exalteth his gate seeketh destruction.
20. He that hath a froward heart findeth no good: and he that hath a perverse tongue falleth into mischief.
21. He that begetteth a fool doeth it to his sorrow: and the father of a fool hath no joy.