Surely Allah is not ashamed to set forth any parable-- (that of) a gnat or any thing above that; then as for those who believe, they know that it is the truth from their Lord, and as for those who disbelieve, they say: What is it that Allah means by this parable: He causes many to err by it and many He leads aright by it! but He does not cause to err by it (any) except the transgressors,

Rather you wish to put questions to your Messenger, as Musa was questioned before; and whoever adopts unbelief instead of faith, he indeed has lost the right direction of the way.

We have made some of these messengers to excel the others among them are they to whom Allah spoke, and some of them He exalted by (many degrees of) rank; and We gave clear miracles to Isa son of Marium, and strengthened him with the holy spirit. And if Allah had pleased, those after them would not have fought one with another after clear arguments had come to them, but they disagreed; so there were some of them who believed and others who denied; and if Allah had pleased they would not have fought one with another, but Allah brings about what He intends.

Have you not seen those who assert that they believe in what has been revealed to you and what was revealed before you? They desire to summon one another to the judgment of the Shaitan, though they were commanded to deny him, and the Shaitan desires to lead them astray into a remote error.

O you who believe! do not take the unbelievers for friends rather than the believers; do you desire that you should give to Allah a manifest proof against yourselves?

Surely those who disbelieve in Allah and His messengers and (those who) desire to make a distinction between Allah and His messengers and say: We believe in some and disbelieve in others, and desire to take a course between (this and) that.

O Messenger! let not those grieve you who strive together in hastening to unbelief from among those who say with their mouths: We believe, and their hearts do not believe, and from among those who are Jews; they are listeners for the sake of a lie, listeners for another people who have not come to you; they alter the words from their places, saying: If you are given this, take it, and if you are not given this, be cautious; and as for him whose temptation Allah desires, you cannot control anything for him with Allah. Those are they for whom Allah does not desire that He should purify their hearts; they shall have disgrace in this world, and they shall have a grievous chastisement in the hereafter.

And those who built a masjid to cause harm and for unbelief and to cause disunion among the believers and an ambush to him who made war against Allah and His Messenger before; and they will certainly swear: We did not desire aught but good; and Allah bears witness that they are most surely liars.

And We have not made the wardens of the fire others than angels, and We have not made their number but as a trial for those who disbelieve, that those who have been given the book may be certain and those who believe may increase in faith, and those who have been given the book and the believers may not doubt, and that those in whose hearts is a disease and the unbelievers may say: What does Allah mean by this parable? Thus does Allah make err whom He pleases, and He guides whom He pleases, and none knows the hosts of your Lord but He Himself; and this is naught but a reminder to the mortals.