This Bible contradiction is from the Skeptic's Annotated Bible.
Proverbs 17:22 View context
A merry heart doeth good [like] a medicine: but a broken spirit drieth the bones.
Ecclesiastes 8:15 View context
Then I commended mirth, because a man hath no better thing under the sun, than to eat, and to drink, and to be merry: for that shall abide with him of his labour the days of his life, which God giveth him under the sun.
Ecclesiastes 7:3-4 View context
Sorrow [is] better than laughter: for by the sadness of the countenance the heart is made better.
The heart of the wise [is] in the house of mourning; but the heart of fools [is] in the house of mirth.
Luke 6:25 View context
Woe unto you that are full! for ye shall hunger. Woe unto you that laugh now! for ye shall mourn and weep.