“No rest for the wicked” (or “No peace for the wicked“) is a phrase originating from the Book of Isaiah verses 48:22 and 57:20-21. (No rest for the wicked – Wikipedia, the free encyclopedia)
The Biblical translation to “rest” is interesting, since the original Hebrew word (as Wikipedia points out) is “Shalom”, which is more commonly used as “peace” or perhaps “well-being.” I suppose the concept of the Lord (and us, his faithful minions?) constantly pursuing ‘the wicked’ is romantic enough to grant picturesque gravitas befitting the Anglo-Saxon interpretation. (“Smite” is another word that succeeds in the same manner.) Reminds me of Batman Begins’ “Death does not wait for you to be ready!”, which might as well have come from the Bible.