Quran 2:77 — The Heifer (Al-Baqarah)

Do they not know that GOD knows everything they conceal, and everything they declare?

[2:76] And when they meet the believers, they say, "We believe," but when they get together with each other, they say, "Do not inform (the believers) of the information given to you by GOD, lest you provide them with support for their argument concerning your Lord. Do you not understand?"

[2:78] Among them are gentiles who do not know the scripture, except through hearsay, then assume that they know it.