Proverbs 25:19

Confidence in an unfaithful man in time of trouble is like a broken tooth, and a foot out of joint.
— Proverbs 25:19, King James Version

In other translations

World English Bible (WEB)

Confidence in someone unfaithful in time of trouble Is like a bad tooth, or a lame foot.

American Standard Version (ASV)

Confidence in an unfaithful man in time of trouble Islikea broken tooth, and a foot out of joint.

Young's Literal Translation (YLT)

A bad tooth, and a tottering foot, <FI>Is<Fi> the confidence of the treacherous in a day of adversity.