And nothing has prevented Us from sending [this message, like the earlier ones,] with miraculous signs [in its wake], save [Our knowledge] that the people of olden times [only too often] gave the lie to them: thus, We provided for [the tribe of] Thamud the she-camel as a light-giving portent, and they sinned against it. And never did We send those signs for any other purpose than to convey a warning.