The word(s) "knowingly" appears 4 time(s) in 4 verse(s) in Quran in Mohsin Khan translation.

(1) Do you (faithful believers) covet that they will believe in your religion inspite of the fact that a party of them (Jewish rabbis) used to hear the Word of Allah [the Taurat (Torah)], then they used to change it knowingly after they understood it?

(2) And eat up not one another's property unjustly (in any illegal way e.g. stealing, robbing, deceiving, etc.), nor give bribery to the rulers (judges before presenting your cases) that you may knowingly eat up a part of the property of others sinfully.

(3) O you who believe! Betray not Allah and His Messenger, nor betray knowingly your Amanat (things entrusted to you, and all the duties which Allah has ordained for you).

(4) And those whom they invoke instead of Him have no power of intercession - except for those who bear witness to the truth knowingly (i.e. believed in the Oneness of Allah, and obeyed His Orders), and they know (the facts about the Oneness of Allah).