O mankind! We have created you from a male and a female, and made you into nations and tribes, that you may know one another. Verily, the most honorable of you with Allah is that (believer) who has At-Taqwa [i.e. one of the Muttaqûn (pious - see). Verily, Allah is All-Knowing, All-Aware.
Surat-Al Hujuraat,