Quran 29:3 — The Spider (Al-'Ankaboot)

We have tested those before them, for GOD must distinguish those who are truthful, and He must expose the liars.

[29:2] Do the people think that they will be left to say, "We believe," without being put to the test?

[29:4] Do those who commit sins think that they can ever fool us? Wrong indeed is their judgment.