What does « To descend / Hospitality » mean in the Quran?

He has sent down upon you, [O Muhammad], the Book in truth, confirming what was before it. And He revealed the Torah and the Gospel.

All food was lawful to the Children of Israel except what Israel had made unlawful to himself before the Torah was revealed. Say, [O Muhammad], "So bring the Torah and recite it, if you should be truthful."

We will cast terror into the hearts of those who disbelieve for what they have associated with Allah of which He had not sent down [any] authority. And their refuge will be the Fire, and wretched is the residence of the wrongdoers.

But those who feared their Lord will have gardens beneath which rivers flow, abiding eternally therein, as accommodation from Allah. And that which is with Allah is best for the righteous.

O you who were given the Scripture, believe in what We have sent down [to Muhammad], confirming that which is with you, before We obliterate faces and turn them toward their backs or curse them as We cursed the sabbath-breakers. And ever is the decree of Allah accomplished.

O you who have believed, believe in Allah and His Messenger and the Book that He sent down upon His Messenger and the Scripture which He sent down before. And whoever disbelieves in Allah, His angels, His books, His messengers, and the Last Day has certainly gone far astray.

And it has already come down to you in the Book that when you hear the verses of Allah [recited], they are denied [by them] and ridiculed; so do not sit with them until they enter into another conversation. Indeed, you would then be like them. Indeed Allah will gather the hypocrites and disbelievers in Hell all together -

The People of the Scripture ask you to bring down to them a book from the heaven. But they had asked of Moses [even] greater than that and said, "Show us Allah outright," so the thunderbolt struck them for their wrongdoing. Then they took the calf [for worship] after clear evidences had come to them, and We pardoned that. And We gave Moses a clear authority.

O you who have believed, do not ask about things which, if they are shown to you, will distress you. But if you ask about them while the Qur'an is being revealed, they will be shown to you. Allah has pardoned that which is past; and Allah is Forgiving and Forbearing.

[And remember] when the disciples said, "O Jesus, Son of Mary, can your Lord send down to us a table [spread with food] from the heaven? [Jesus] said," Fear Allah, if you should be believers."

And even if We had sent down to you, [O Muhammad], a written scripture on a page and they touched it with their hands, the disbelievers would say, "This is not but obvious magic."

And they say, "Why has a sign not been sent down to him from his Lord?" Say, "Indeed, Allah is Able to send down a sign, but most of them do not know."

And how should I fear what you associate while you do not fear that you have associated with Allah that for which He has not sent down to you any authority? So which of the two parties has more right to security, if you should know?

And even if We had sent down to them the angels [with the message] and the dead spoke to them [of it] and We gathered together every [created] thing in front of them, they would not believe unless Allah should will. But most of them, [of that], are ignorant.

Say, "My Lord has only forbidden immoralities - what is apparent of them and what is concealed - and sin, and oppression without right, and that you associate with Allah that for which He has not sent down authority, and that you say about Allah that which you do not know."

[Hud] said, "Already have defilement and anger fallen upon you from your Lord. Do you dispute with me concerning [mere] names you have named them, you and your fathers, for which Allah has not sent down any authority? Then wait; indeed, I am with you among those who wait."

Indeed, my protector is Allah, who has sent down the Book; and He is an ally to the righteous.

[Remember] when He overwhelmed you with drowsiness [giving] security from Him and sent down upon you from the sky, rain by which to purify you and remove from you the evil [suggestions] of Satan and to make steadfast your hearts and plant firmly thereby your feet.

They hypocrites are apprehensive lest a surah be revealed about them, informing them of what is in their hearts. Say, "Mock [as you wish]; indeed, Allah will expose that which you fear."

And they say, "O you upon whom the message has been sent down, indeed you are mad.

We do not send down the angels except with truth; and the disbelievers would not then be reprieved.

Indeed, it is We who sent down the Qur'an and indeed, We will be its guardian.

And there is not a thing but that with Us are its depositories, and We do not send it down except according to a known measure.

He sends down the angels, with the inspiration of His command, upon whom He wills of His servants, [telling them], "Warn that there is no deity except Me; so fear Me."

[We sent them] with clear proofs and written ordinances. And We revealed to you the message that you may make clear to the people what was sent down to them and that they might give thought.