NET
18 Why must I continually suffer such painful anguish? Why must I endure the sting of their insults like an incurable wound? Will you let me down when I need you, like a brook one goes to for water, but that cannot be relied on?”
Darby
18 Why is my pain perpetual, and my wound incurable? It refuseth to be healed. Wilt thou be altogether unto me as a treacherous [spring], [as] waters that fail?
KJV
18 Why is my pain perpetual, and my wound incurable, [which] refuseth to be healed? wilt thou be altogether unto me as a liar, [and as] waters [that] fail?