Contradiction with Proverbs 14:13
This verse suggests that even in moments of laughter the heart can still be sorrowful, contradicting the idea of having only joy and gladness.
Proverbs 14:13: Even in laughter the heart is sorrowful; and the end of that mirth [is] heaviness.
Contradiction with Ecclesiastes 2:2
This verse implies that laughter is madness, which contradicts the notion of having a mouth filled with laughter as something positive.
Ecclesiastes 2:2: I said of laughter, [It is] mad: and of mirth, What doeth it?
Contradiction with Ecclesiastes 7:3
This verse suggests that sorrow is better than laughter, contradicting the idea that laughter and gladness are superior or desired states.
Ecclesiastes 7:3: Sorrow [is] better than laughter: for by the sadness of the countenance the heart is made better. [Sorrow: or, Anger]
Contradiction with James 4:9
This verse calls for turning laughter into mourning and joy into heaviness, which contradicts the concept of having a consistently joyful and laughter-filled life.
James 4:9: Be afflicted, and mourn, and weep: let your laughter be turned to mourning, and [your] joy to heaviness.