The ground of revelation demonstration

The reality of divine message is descended to the heart of the messenger of God as Quran states
نَزَلَ بِهِ الرُّوحُ الْأَمِینُ
With it came down the spirit of Faith and Truth.
What is related to prophets is to find the reality of divine messages. Quran states
وَالَّذِینَ جَاهَدُوا فِینَا لَنَهْدِیَنَّهُمْ سُبُلَنَا ۚ وَإِنَّ اللَّهَ لَمَعَ الْمُحْسِنِینَ
And those who strive in Our (cause),- We will certainly guide them to our Paths: For verily Allah is with those who do right.
یَا أَیُّهَا الَّذِینَ آمَنُوا إِن تَتَّقُوا اللَّهَ یَجْعَل لَّكُمْ فُرْقَانًا وَیُكَفِّرْ عَنكُمْ سَیِّئَاتِكُمْ وَیَغْفِرْ لَكُمْ ۗ وَاللَّهُ ذُو الْفَضْلِ الْعَظِیمِ
O ye who believe! if ye fear Allah, He will grant you a criterion (to judge between right and wrong), remove from you (all) evil (that may afflict) you, and forgive you: for Allah is the Lord of grace unbounded.
Quran states that persons that follow divine messages have awake heart and persons that do not follow divine messages have blind eyes and deaf ears;
وَلَقَدْ ذَرَأْنَا لِجَهَنَّمَ كَثِیرًا مِّنَ الْجِنِّ وَالْإِنسِ ۖ لَهُمْ قُلُوبٌ لَّا یَفْقَهُونَ بِهَا وَلَهُمْ أَعْیُنٌ لَّا یُبْصِرُونَ بِهَا وَلَهُمْ آذَانٌ لَّا یَسْمَعُونَ بِهَا ۚ أُولَٰئِكَ كَالْأَنْعَامِ بَلْ هُمْ أَضَلُّ ۚ أُولَٰئِكَ هُمُ الْغَافِلُونَ
Many are the Jinns and men we have made for Hell: They have hearts wherewith they understand not, eyes wherewith they see not, and ears wherewith they hear not. They are like cattle,- nay more misguided: for they are heedless (of warning). Quran states
حم
Ha Mim.
تَنزِیلٌ مِّنَ الرَّحْمَٰنِ الرَّحِیمِ
A Revelation from (Allah), Most Gracious, Most Merciful.
كِتَابٌ فُصِّلَتْ آیَاتُهُ قُرْآنًا عَرَبِیًّا لِّقَوْمٍ یَعْلَمُونَ
A Book, whereof the verses are explained in detail;- a Qur´an in Arabic, for people who understand.
بَشِیرًا وَنَذِیرًا فَأَعْرَضَ أَكْثَرُهُمْ فَهُمْ لَا یَسْمَعُونَ
Giving good news and admonition: yet most of them turn away, and so they hear not.
Quran states about the mercy of God
وَاكْتُبْ لَنَا فِی هَٰذِهِ الدُّنْیَا حَسَنَةً وَفِی الْآخِرَةِ إِنَّا هُدْنَا إِلَیْكَ ۚ قَالَ عَذَابِی أُصِیبُ بِهِ مَنْ أَشَاءُ ۖ وَرَحْمَتِی وَسِعَتْ كُلَّ شَیْءٍ ۚ فَسَأَكْتُبُهَا لِلَّذِینَ یَتَّقُونَ وَیُؤْتُونَ الزَّكَاةَ وَالَّذِینَ هُم بِآیَاتِنَا یُؤْمِنُونَ
"And ordain for us that which is good, in this life and in the Hereafter: for we have turned unto Thee." He said: "With My punishment I visit whom I will; but My mercy extendeth to all things. That (mercy) I shall ordain for those who do right, and practise regular charity, and those who believe in Our signs.
نَّهُ لَقَوْلٌ فَصْلٌ
.( Behold this is the Word that distinguishes (Good from Evil
أُولَٰئِكَ الَّذِینَ هَدَى اللَّهُ ۖ فَبِهُدَاهُمُ اقْتَدِهْ ۗ قُل لَّا أَسْأَلُكُمْ عَلَیْهِ أَجْرًا ۖ إِنْ هُوَ إِلَّا ذِكْرَىٰ لِلْعَالَمِینَ
Those were the (prophets) who received Allah´s guidance: Copy the guidance they received; Say: "No reward for this do I ask of you: This is no less than a message for the nations.
قُلْ یَا أَیُّهَا النَّاسُ إِنِّی رَسُولُ اللَّهِ إِلَیْكُمْ جَمِیعًا الَّذِی لَهُ مُلْكُ السَّمَاوَاتِ وَالْأَرْضِ ۖ لَا إِلَٰهَ إِلَّا هُوَ یُحْیِی وَیُمِیتُ ۖ فَآمِنُوا بِاللَّهِ وَرَسُولِهِ النَّبِیِّ الْأُمِّیِّ الَّذِی یُؤْمِنُ بِاللَّهِ وَكَلِمَاتِهِ وَاتَّبِعُوهُ لَعَلَّكُمْ تَهْتَدُونَ
Say: "O men! I am sent unto you all, as the Messenger of Allah, to Whom belongeth the dominion of the heavens and the earth: there is no god but He: it is He That giveth both life and death. So believe in Allah and His Messenger, the Unlettered Prophet, who believeth in Allah and His words: follow him that (so) ye may be guided.
بَشِیرًا وَنَذِیرًا فَأَعْرَضَ أَكْثَرُهُمْ فَهُمْ لَا یَسْمَعُونَ
Giving good news and admonition: yet most of them turn away, and so they hear not.
وَنَادَىٰ أَصْحَابُ النَّارِ أَصْحَابَ الْجَنَّةِ أَنْ أَفِیضُوا عَلَیْنَا مِنَ الْمَاءِ أَوْ مِمَّا رَزَقَكُمُ اللَّهُ ۚ قَالُوا إِنَّ اللَّهَ حَرَّمَهُمَا عَلَى الْكَافِرِینَ
The Companions of the Fire will call to the Companions of the Garden: "Pour down to us water or anything that Allah doth provide for your sustenance." They will say: "Both these things hath Allah forbidden to those who rejected Him.
بَشِیرًا وَنَذِیرًا فَأَعْرَضَ أَكْثَرُهُمْ فَهُمْ لَا یَسْمَعُونَ
Giving good news and admonition: yet most of them turn away, and so they hear not.
وَقَالُوا قُلُوبُنَا فِی أَكِنَّةٍ مِّمَّا تَدْعُونَا إِلَیْهِ وَفِی آذَانِنَا وَقْرٌ وَمِن بَیْنِنَا وَبَیْنِكَ حِجَابٌ فَاعْمَلْ إِنَّنَا عَامِلُونَ
They say: "Our hearts are under veils, (concealed) from that to which thou dost invite us, and in our ears in a deafness, and between us and thee is a screen: so do thou (what thou wilt); for us, we shall do (what we will).
قَالُوا یَا شُعَیْبُ مَا نَفْقَهُ كَثِیرًا مِّمَّا تَقُولُ وَإِنَّا لَنَرَاكَ فِینَا ضَعِیفًا ۖ وَلَوْلَا رَهْطُكَ لَرَجَمْنَاكَ ۖ وَمَا أَنتَ عَلَیْنَا بِعَزِیزٍ
They said: "O Shu´aib! much of what thou sayest we do not understand! In fact among us we see that thou hast no strength! Were it not for thy family, we should certainly have stoned thee! for thou hast among us no great position.
وَقَدْ خَابَ مَن دَسَّاهَا
. And he fails that corrupts it
مُهْطِعِینَ مُقْنِعِی رُءُوسِهِمْ لَا یَرْتَدُّ إِلَیْهِمْ طَرْفُهُمْ ۖ وَأَفْئِدَتُهُمْ هَوَاءٌ
They running forward with necks outstretched, their heads uplifted, their gaze returning not towards them, and their hearts a (gaping) void.
وَإِذَا قَرَأْتَ الْقُرْآنَ جَعَلْنَا بَیْنَكَ وَبَیْنَ الَّذِینَ لَا یُؤْمِنُونَ بِالْآخِرَةِ حِجَابًا مَّسْتُورًا
When thou dost recite the Qur´an, We put, between thee and those who believe not in the Hereafter, a veil invisible.
إِنَّ نَاشِئَةَ اللَّیْلِ هِیَ أَشَدُّ وَطْئًا وَأَقْوَمُ قِیلًا
Truly the rising by night is most potent for governing (the soul), and most suitable for (framing) the Word (of Prayer and Praise).
فَأَجْمِعُوا كَیْدَكُمْ ثُمَّ ائْتُوا صَفًّا ۚ وَقَدْ أَفْلَحَ الْیَوْمَ مَنِ اسْتَعْلَىٰ
Therefore concert your plan, and then assemble in (serried) ranks: He wins (all along) today who gains the upper hand.
وَأَلْقِ مَا فِی یَمِینِكَ تَلْقَفْ مَا صَنَعُوا ۖ إِنَّمَا صَنَعُوا كَیْدُ سَاحِرٍ ۖ وَلَا یُفْلِحُ السَّاحِرُ حَیْثُ أَتَىٰ
"Throw that which is in thy right hand: Quickly will it swallow up that which they have faked what they have faked is but a magician´s trick: and the magician thrives not, (no matter) where he goes.
وَإِذَا قَرَأْتَ الْقُرْآنَ جَعَلْنَا بَیْنَكَ وَبَیْنَ الَّذِینَ لَا یُؤْمِنُونَ بِالْآخِرَةِ حِجَابًا مَّسْتُورًا
When thou dost recite the Qur´an, We put, between thee and those who believe not in the Hereafter, a veil invisible.
وَجَعَلْنَا عَلَىٰ قُلُوبِهِمْ أَكِنَّةً أَن یَفْقَهُوهُ وَفِی آذَانِهِمْ وَقْرًا ۚ وَإِذَا ذَكَرْتَ رَبَّكَ فِی الْقُرْآنِ وَحْدَهُ وَلَّوْا عَلَىٰ أَدْبَارِهِمْ نُفُورًا
And We put coverings over their hearts (and minds) lest they should understand the Qur´an, and deafness into their ears: when thou dost commemorate thy Lord and Him alone in the Qur´an, they turn on their backs, fleeing (from the Truth).
وَإِذْ قَالَ مُوسَىٰ لِقَوْمِهِ یَا قَوْمِ لِمَ تُؤْذُونَنِی وَقَد تَّعْلَمُونَ أَنِّی رَسُولُ اللَّهِ إِلَیْكُمْ ۖ فَلَمَّا زَاغُوا أَزَاغَ اللَّهُ قُلُوبَهُمْ ۚ وَاللَّهُ لَا یَهْدِی الْقَوْمَ الْفَاسِقِینَ
And remember, Moses said to his people: "O my people! why do ye vex and insult me, though ye know that I am the messenger of Allah (sent) to you?" Then when they went wrong, Allah let their hearts go wrong. For Allah guides not those who are rebellious transgressors.
وَنُنَزِّلُ مِنَ الْقُرْآنِ مَا هُوَ شِفَاءٌ وَرَحْمَةٌ لِّلْمُؤْمِنِینَ ۙ وَلَا یَزِیدُ الظَّالِمِینَ إِلَّا خَسَارًا
We send down (stage by stage) in the Qur´an that which is a healing and a mercy to those who believe: to the unjust it causes nothing but loss after loss.
وَقَالُوا لَوْ كُنَّا نَسْمَعُ أَوْ نَعْقِلُ مَا كُنَّا فِی أَصْحَابِ السَّعِیرِ
They will further say: "Had we but listened or used our intelligence, we should not (now) be among the Companions of the Blazing Fire.
فَفِرُّوا إِلَى اللَّهِ ۖ إِنِّی لَكُم مِّنْهُ نَذِیرٌ مُّبِینٌ
Hasten ye then (at once) to Allah: I am from Him a Warner to you, clear and open.
God says about the conspiracies, decisions and remarks of enemies to the messenger of God;
نَّحْنُ أَعْلَمُ بِمَا یَسْتَمِعُونَ بِهِ إِذْ یَسْتَمِعُونَ إِلَیْكَ وَإِذْ هُمْ نَجْوَىٰ إِذْ یَقُولُ الظَّالِمُونَ إِن تَتَّبِعُونَ إِلَّا رَجُلًا مَّسْحُورًا
We know best why it is they listen, when they listen to thee; and when they meet in private conference, behold, the wicked say, "Ye follow none other than a man bewitched.
Quran states
وَقَالَ الَّذِینَ كَفَرُوا لَا تَسْمَعُوا لِهَٰذَا الْقُرْآنِ وَالْغَوْا فِیهِ لَعَلَّكُمْ تَغْلِبُونَ
The Unbelievers say: "Listen not to this Qur´an, but talk at random in the midst of its (reading), that ye may gain the upper hand.
وَمَا جَعَلْنَا أَصْحَابَ النَّارِ إِلَّا مَلَائِكَةً ۙ وَمَا جَعَلْنَا عِدَّتَهُمْ إِلَّا فِتْنَةً لِّلَّذِینَ كَفَرُوا لِیَسْتَیْقِنَ الَّذِینَ أُوتُوا الْكِتَابَ وَیَزْدَادَ الَّذِینَ آمَنُوا إِیمَانًا ۙ وَلَا یَرْتَابَ الَّذِینَ أُوتُوا الْكِتَابَ وَالْمُؤْمِنُونَ ۙ وَلِیَقُولَ الَّذِینَ فِی قُلُوبِهِم مَّرَضٌ وَالْكَافِرُونَ مَاذَا أَرَادَ اللَّهُ بِهَٰذَا مَثَلًا ۚ كَذَٰلِكَ یُضِلُّ اللَّهُ مَن یَشَاءُ وَیَهْدِی مَن یَشَاءُ ۚ وَمَا یَعْلَمُ جُنُودَ رَبِّكَ إِلَّا هُوَ ۚ وَمَا هِیَ إِلَّا ذِكْرَىٰ لِلْبَشَرِ
And We have set none but angels as Guardians of the Fire; and We have fixed their number only as a trial for Unbelievers,- in order that the People of the Book may arrive at certainty, and the Believers may increase in Faith,- and that no doubts may be left for the People of the Book and the Believers, and that those in whose hearts is a disease and the Unbelievers may say, "What symbol doth Allah intend by this?" Thus doth Allah leave to stray whom He pleaseth, and guide whom He pleaseth: and none can know the forces of thy Lord, except He and this is no other than a warning to mankind.
هُوَ الَّذِی أَنزَلَ السَّكِینَةَ فِی قُلُوبِ الْمُؤْمِنِینَ لِیَزْدَادُوا إِیمَانًا مَّعَ إِیمَانِهِمْ ۗ وَلِلَّهِ جُنُودُ السَّمَاوَاتِ وَالْأَرْضِ ۚ وَكَانَ اللَّهُ عَلِیمًا حَكِیمًا
It is He Who sent down tranquillity into the hearts of the Believers, that they may add faith to their faith;- for to Allah belong the Forces of the heavens and the earth; and Allah is Full of Knowledge and Wisdom.
لَنُذِیقَنَّ الَّذِینَ كَفَرُوا عَذَابًا شَدِیدًا وَلَنَجْزِیَنَّهُمْ أَسْوَأَ الَّذِی كَانُوا یَعْمَلُونَ
But We will certainly give the Unbelievers a taste of a severe Penalty, and We will requite them for the worst of their deeds.
Quran states about polytheists
قُلْ إِنَّمَا أَنَا بَشَرٌ مِّثْلُكُمْ یُوحَىٰ إِلَیَّ أَنَّمَا إِلَٰهُكُمْ إِلَٰهٌ وَاحِدٌ فَاسْتَقِیمُوا إِلَیْهِ وَاسْتَغْفِرُوهُ ۗ وَوَیْلٌ لِّلْمُشْرِكِینَ
Say thou: "I am but a man like you: It is revealed to me by Inspiration, that your Allah is one Allah: so stand true to Him, and ask for His Forgiveness." And woe to those who join gods with Allah''.
الَّذِینَ لَا یُؤْتُونَ الزَّكَاةَ وَهُم بِالْآخِرَةِ هُمْ كَافِرُونَ
Those who practise not regular Charity, and who even deny the Hereafter.
وَالَّذِینَ هُمْ لِلزَّكَاةِ فَاعِلُونَ
Who are active in deeds of charity.
وَلَوْ جَعَلْنَاهُ قُرْآنًا أَعْجَمِیًّا لَّقَالُوا لَوْلَا فُصِّلَتْ آیَاتُهُ ۖ أَأَعْجَمِیٌّ وَعَرَبِیٌّ ۗ قُلْ هُوَ لِلَّذِینَ آمَنُوا هُدًى وَشِفَاءٌ ۖ وَالَّذِینَ لَا یُؤْمِنُونَ فِی آذَانِهِمْ وَقْرٌ وَهُوَ عَلَیْهِمْ عَمًى ۚ أُولَٰئِكَ یُنَادَوْنَ مِن مَّكَانٍ بَعِیدٍ
Had We sent this as a Qur´an (in the language) other than Arabic, they would have said: "Why are not its verses explained in detail? What! (a Book) not in Arabic and (a Messenger an Arab?" Say: "It is a Guide and a Healing to those who believe; and for those who believe not, there is a deafness in their ears, and it is blindness in their (eyes): They are (as it were) being called from a place far distant.
إِلَیْهِ یُرَدُّ عِلْمُ السَّاعَةِ ۚ وَمَا تَخْرُجُ مِن ثَمَرَاتٍ مِّنْ أَكْمَامِهَا وَمَا تَحْمِلُ مِنْ أُنثَىٰ وَلَا تَضَعُ إِلَّا بِعِلْمِهِ ۚ وَیَوْمَ یُنَادِیهِمْ أَیْنَ شُرَكَائِی قَالُوا آذَنَّاكَ مَا مِنَّا مِن شَهِیدٍ
To Him is referred the Knowledge of the Hour (of Judgment: He knows all): No date-fruit comes out of its sheath, nor does a female conceive (within her womb) nor bring forth the Day that (Allah) will propound to them the (question), "Where are the partners (ye attributed to Me?" They will say, "We do assure thee not one of us can bear witness''.
قَدْ نَرَىٰ تَقَلُّبَ وَجْهِكَ فِی السَّمَاءِ ۖ فَلَنُوَلِّیَنَّكَ قِبْلَةً تَرْضَاهَا ۚ فَوَلِّ وَجْهَكَ شَطْرَ الْمَسْجِدِ الْحَرَامِ ۚ وَحَیْثُ مَا كُنتُمْ فَوَلُّوا وُجُوهَكُمْ شَطْرَهُ ۗ وَإِنَّ الَّذِینَ أُوتُوا الْكِتَابَ لَیَعْلَمُونَ أَنَّهُ الْحَقُّ مِن رَّبِّهِمْ ۗ وَمَا اللَّهُ بِغَافِلٍ عَمَّا یَعْمَلُونَ
We see the turning of thy face (for guidance to the heavens: now Shall We turn thee to a Qibla that shall please thee. Turn then Thy face in the direction of the sacred Mosque: Wherever ye are, turn your faces in that direction. The people of the Book know well that that is the truth from their Lord. Nor is Allah unmindful of what they do.
وَلَئِنْ أَتَیْتَ الَّذِینَ أُوتُوا الْكِتَابَ بِكُلِّ آیَةٍ مَّا تَبِعُوا قِبْلَتَكَ ۚ وَمَا أَنتَ بِتَابِعٍ قِبْلَتَهُمْ ۚ وَمَا بَعْضُهُم بِتَابِعٍ قِبْلَةَ بَعْضٍ ۚ وَلَئِنِ اتَّبَعْتَ أَهْوَاءَهُم مِّن بَعْدِ مَا جَاءَكَ مِنَ الْعِلْمِ ۙ إِنَّكَ إِذًا لَّمِنَ الظَّالِمِینَ
Even if thou wert to bring to the people of the Book all the Signs (together), they would not follow Thy Qibla; nor art thou going to follow their Qibla; nor indeed will they follow each other´s Qibla. If thou after the knowledge hath reached thee, Wert to follow their (vain) desires,-then wert thou Indeed (clearly) in the wrong.