1 Samuel 21:14

Then said Achish unto his servant, "Lo, ye saw that this man was beside himself; wherefore then have ye brought him to me?

Ecclesiastes 7:7

Whoso doeth wrong, maketh a wise man to go out of his wit, and destroyeth a gentle heart.

Treasury of Scripture Knowledge

Summary

Then said Achish unto his servants, Lo, ye see the man is mad: wherefore then have ye brought him to me?

Bible References

Is mad

Ecclesiastes 7:7
Whoso doeth wrong, maketh a wise man to go out of his wit, and destroyeth a gentle heart.