And We do not send messengers but as givers of good news and warning, and those who disbelieve make a false contention that they may render null thereby the truth, and they take My communications and that with which they are warned for a mockery.

The people of Nuh and the parties after them rejected (prophets) before them, and every nation purposed against their messenger to destroy him, and they disputed by means of the falsehood that they might thereby render null the truth, therefore I destroyed them; how was then My retribution!

And certainly We sent messengers before you: there are some of them that We have mentioned to you and there are others whom We have not mentioned to you, and it was not meet for a messenger that he should bring a sign except with Allah's permission, but when the command of Allah came, judgment was given with truth, and those who treated (it) as a lie were lost.

O you who believe! obey Allah and obey the Messenger, and do not make your deeds of no effect.