The word(s) "treachery" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) But on account of their breaking their covenant We cursed them and made their hearts hard; they altered the words from their places and they neglected a portion of what they were reminded of; and you shall always discover treachery in them excepting a few of them; so pardon them and turn away; surely Allah loves those who do good (to others).

(2) And if you fear treachery on the part of a people, then throw back to them on terms of equality; surely Allah does not love the treacherous.