¹⁹ Like a broken tooth or a lame foot is reliance on the unfaithful in a time of trouble.

¹⁹ Confidence in an unfaithful man in time of trouble is like a broken tooth, and a foot out of joint.

¹⁹ Confidence in an unfaithful man in time of trouble Is [like] a broken tooth, and a foot out of joint.

¹⁹ Confidence in someone unfaithful in time of trouble
is like a bad tooth, or a lame foot.