Ben Sira 19:27

27 They will turn their faces away and pretend not to hear you, but they'll take advantage of you when you least expect it.

Ben Sira 19:27 In-Context

25 It is possible to be marvelously clever and still be dishonest, or to get what you want by being absurdly polite.

26 Then there are those wicked people who go about looking very solemn and mournful, but who are only trying to deceive you.

27 They will turn their faces away and pretend not to hear you, but they'll take advantage of you when you least expect it.

28 If for some reason they are unable to sin now, they'll get around to it at the first opportunity.

29 You can know people by their appearance. The first time you look at them, you can tell if they have good sense.