Proverbs 15:13

15:13 A joyful heart makes the face cheerful,

but by a painful heart the spirit is broken.

Proverbs 15:15

15:15 All the days of the afflicted are bad,

but one with a cheerful heart has a continual feast.

Proverbs 15:23

15:23 A person has joy in giving an appropriate answer,

and a word at the right time – how good it is!