"A merry heart doeth good like medicine: but a broken spirit drieth the bone."
Proverbs 17:22
"Let your conversation be without covetousness; and be content with such things as ye have: for He hath said, I will never leave thee nor forsake thee."
Hebrews 13:5
"All the days of the afflicted are evil: but he that is of a merry heart hath a continual feast."
Proverbs 15:15
A sound heart is the life of the flesh: but envy is the rottenness of the bones."
Proverbs 14:30
"But godliness with contentment is great gain."
1 Timothy 6:6
"Let not thine heart envy sinners: but be thou in the fear of the LORD all the day long. For surely there is an end; and thine expectation shall not be cut off."
Proverbs 23:17-18