Language of revelation (divine messages)

Language is the easiest means of transferring mental conceptions and it is considered as the easiest tool in the social life that a person can express meanings. The crucial matter of expressing meanings can be done easily through language. Therefore, God has mentioned it as the greatest blessing after creation;
ا لرَّحْمَٰنُ
.(Allah) Most Gracious
عَلَّمَ الْقُرْآنَ
.It is He Who has taught the Qur´an
خَلَقَ الْإِنسَانَ
He has created man.
عَلَّمَهُ الْبَيَانَ
He has taught him speech (and intelligence).
Divine religions that have been descended for persons have used this way. Quran states
اللَّهِ الَّذِي لَهُ مَا فِي السَّمَاوَاتِ وَمَا فِي الْأَرْضِ ۗ وَوَيْلٌ لِّلْكَافِرِينَ مِنْ عَذَابٍ شَدِيدٍ
Of Allah, to Whom do belong all things in the heavens and on earth! But alas for the Unbelievers for a terrible penalty (their Unfaith will bring them).
أَلَمْ يَأْتِكُمْ نَبَأُ الَّذِينَ مِن قَبْلِكُمْ قَوْمِ نُوحٍ وَعَادٍ وَثَمُودَ ۛ وَالَّذِينَ مِن بَعْدِهِمْ ۛ لَا يَعْلَمُهُمْ إِلَّا اللَّهُ ۚ جَاءَتْهُمْ رُسُلُهُم بِالْبَيِّنَاتِ فَرَدُّوا أَيْدِيَهُمْ فِي أَفْوَاهِهِمْ وَقَالُوا إِنَّا كَفَرْنَا بِمَا أُرْسِلْتُم بِهِ وَإِنَّا لَفِي شَكٍّ مِّمَّا تَدْعُونَنَا إِلَيْهِ مُرِيبٍ
Has not the story reached you, (O people!), of those who (went) before you? - of the people of Noah, and ´Ad, and Thamud? - And of those who (came) after them? None knows them but Allah. To them came messengers with Clear (Signs); but they put their hands up to their mouths, and said: "We do deny (the mission) on which ye have been sent, and we are really in suspicious (disquieting) doubt as to that to which ye invite us.
قَالَتْ رُسُلُهُمْ أَفِي اللَّهِ شَكٌّ فَاطِرِ السَّمَاوَاتِ وَالْأَرْضِ ۖ يَدْعُوكُمْ لِيَغْفِرَ لَكُم مِّن ذُنُوبِكُمْ وَيُؤَخِّرَكُمْ إِلَىٰ أَجَلٍ مُّسَمًّى ۚ قَالُوا إِنْ أَنتُمْ إِلَّا بَشَرٌ مِّثْلُنَا تُرِيدُونَ أَن تَصُدُّونَا عَمَّا كَانَ يَعْبُدُ آبَاؤُنَا فَأْتُونَا بِسُلْطَانٍ مُّبِينٍ
Their messengers said: "Is there a doubt about Allah, The Creator of the heavens and the earth? It is He Who invites you, in order that He may forgive you your sins and give you respite for a term appointed!" They said: "Ah! ye are no more than human, like ourselves! Ye wish to turn us away from the (gods) our fathers used to worship: then bring us some clear authority.
وَبَرَزُوا لِلَّهِ جَمِيعًا فَقَالَ الضُّعَفَاءُ لِلَّذِينَ اسْتَكْبَرُوا إِنَّا كُنَّا لَكُمْ تَبَعًا فَهَلْ أَنتُم مُّغْنُونَ عَنَّا مِنْ عَذَابِ اللَّهِ مِن شَيْءٍ ۚ قَالُوا لَوْ هَدَانَا اللَّهُ لَهَدَيْنَاكُمْ ۖ سَوَاءٌ عَلَيْنَا أَجَزِعْنَا أَمْ صَبَرْنَا مَا لَنَا مِن مَّحِيصٍ
They will all be marshalled before Allah together: then will the weak say to those who were arrogant, "For us, we but followed you; can ye then avail us to all against the wrath of Allah?" They will reply, "If we had received the Guidance of Allah, we should have given it to you: to us it makes no difference (now) whether we rage, or bear (these torments) with patience: for ourselves there is no way of escape.
وَقَالَ الشَّيْطَانُ لَمَّا قُضِيَ الْأَمْرُ إِنَّ اللَّهَ وَعَدَكُمْ وَعْدَ الْحَقِّ وَوَعَدتُّكُمْ فَأَخْلَفْتُكُمْ ۖ وَمَا كَانَ لِيَ عَلَيْكُم مِّن سُلْطَانٍ إِلَّا أَن دَعَوْتُكُمْ فَاسْتَجَبْتُمْ لِي ۖ فَلَا تَلُومُونِي وَلُومُوا أَنفُسَكُم ۖ مَّا أَنَا بِمُصْرِخِكُمْ وَمَا أَنتُم بِمُصْرِخِيَّ ۖ إِنِّي كَفَرْتُ بِمَا أَشْرَكْتُمُونِ مِن قَبْلُ ۗ إِنَّ الظَّالِمِينَ لَهُمْ عَذَابٌ أَلِيمٌ
And Satan will say when the matter is decided: "It was Allah Who gave you a promise of Truth: I too promised, but I failed in my promise to you. I had no authority over you except to call you but ye listened to me: then reproach not me, but reproach your own souls. I cannot listen to your cries, nor can ye listen to mine. I reject your former act in associating me with Allah. For wrong-doers there must be a grievous penalty.
اللَّهُ الَّذِي خَلَقَ السَّمَاوَاتِ وَالْأَرْضَ وَأَنزَلَ مِنَ السَّمَاءِ مَاءً فَأَخْرَجَ بِهِ مِنَ الثَّمَرَاتِ رِزْقًا لَّكُمْ ۖ وَسَخَّرَ لَكُمُ الْفُلْكَ لِتَجْرِيَ فِي الْبَحْرِ بِأَمْرِهِ ۖ وَسَخَّرَ لَكُمُ الْأَنْهَارَ
It is Allah Who hath created the heavens and the earth and sendeth down rain from the skies, and with it bringeth out fruits wherewith to feed you; it is He Who hath made the ships subject to you, that they may sail through the sea by His command; and the rivers (also) hath He made subject to you.
وَأَنذِرِ النَّاسَ يَوْمَ يَأْتِيهِمُ الْعَذَابُ فَيَقُولُ الَّذِينَ ظَلَمُوا رَبَّنَا أَخِّرْنَا إِلَىٰ أَجَلٍ قَرِيبٍ نُّجِبْ دَعْوَتَكَ وَنَتَّبِعِ الرُّسُلَ ۗ أَوَلَمْ تَكُونُوا أَقْسَمْتُم مِّن قَبْلُ مَا لَكُم مِّن زَوَالٍ
So warn mankind of the Day when the Wrath will reach them: then will the wrong-doers say: "Our Lord! respite us (if only) for a short term: we will answer Thy call, and follow the messengers!" "What! were ye not wont to swear aforetime that ye should suffer no decline?
Therefore, language of the religion is same language of people and since persons are addressed, it should be understandable for them.
Quran descended among Arabic Tribe and it was presented to them fluent Arabic Language. Quran states
إِنَّا أَنزَلْنَاهُ قُرْآنًا عَرَبِيًّا لَّعَلَّكُمْ تَعْقِلُونَ
We have sent it down as an Arabic Qur´an, in order that ye may learn wisdom.
وَكَذَٰلِكَ يَجْتَبِيكَ رَبُّكَ وَيُعَلِّمُكَ مِن تَأْوِيلِ الْأَحَادِيثِ وَيُتِمُّ نِعْمَتَهُ عَلَيْكَ وَعَلَىٰ آلِ يَعْقُوبَ كَمَا أَتَمَّهَا عَلَىٰ أَبَوَيْكَ مِن قَبْلُ إِبْرَاهِيمَ وَإِسْحَاقَ ۚ إِنَّ رَبَّكَ عَلِيمٌ حَكِيمٌ
Thus will thy Lord choose thee and teach thee the interpretation of stories (and events) and perfect His favour to thee and to the posterity of Jacob - even as He perfected it to thy fathers Abraham and Isaac aforetime! for Allah is full of knowledge and wisdom.
وَقَالَ الَّذِي اشْتَرَاهُ مِن مِّصْرَ لِامْرَأَتِهِ أَكْرِمِي مَثْوَاهُ عَسَىٰ أَن يَنفَعَنَا أَوْ نَتَّخِذَهُ وَلَدًا ۚ وَكَذَٰلِكَ مَكَّنَّا لِيُوسُفَ فِي الْأَرْضِ وَلِنُعَلِّمَهُ مِن تَأْوِيلِ الْأَحَادِيثِ ۚ وَاللَّهُ غَالِبٌ عَلَىٰ أَمْرِهِ وَلَٰكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ
The man in Egypt who bought him, said to his wife: "Make his stay (among us) honourable: may be he will bring us much good, or we shall adopt him as a son." Thus did We establish Joseph in the land, that We might teach him the interpretation of stories (and events). And Allah hath full power and control over His affairs; but most among mankind know it not''.
فَلَمَّا سَمِعَتْ بِمَكْرِهِنَّ أَرْسَلَتْ إِلَيْهِنَّ وَأَعْتَدَتْ لَهُنَّ مُتَّكَأً وَآتَتْ كُلَّ وَاحِدَةٍ مِّنْهُنَّ سِكِّينًا وَقَالَتِ اخْرُجْ عَلَيْهِنَّ ۖ فَلَمَّا رَأَيْنَهُ أَكْبَرْنَهُ وَقَطَّعْنَ أَيْدِيَهُنَّ وَقُلْنَ حَاشَ لِلَّهِ مَا هَٰذَا بَشَرًا إِنْ هَٰذَا إِلَّا مَلَكٌ كَرِيمٌ
When she heard of their malicious talk, she sent for them and prepared a banquet for them: she gave each of them a knife: and she said (to Joseph), "Come out before them." When they saw him, they did extol him, and (in their amazement) cut their hands: they said, "Allah preserve us! no mortal is this! this is none other than a noble angel.
قَالَتْ فَذَٰلِكُنَّ الَّذِي لُمْتُنَّنِي فِيهِ ۖ وَلَقَدْ رَاوَدتُّهُ عَن نَّفْسِهِ فَاسْتَعْصَمَ ۖ وَلَئِن لَّمْ يَفْعَلْ مَا آمُرُهُ لَيُسْجَنَنَّ وَلَيَكُونًا مِّنَ الصَّاغِرِينَ
She said: "There before you is the man about whom ye did blame me! I did seek to seduce him from his (true) self but he did firmly save himself guiltless!....and now, if he doth not my bidding, he shall certainly be cast into prison, and (what is more) be of the company of the vilest.
وَدَخَلَ مَعَهُ السِّجْنَ فَتَيَانِ ۖ قَالَ أَحَدُهُمَا إِنِّي أَرَانِي أَعْصِرُ خَمْرًا ۖ وَقَالَ الْآخَرُ إِنِّي أَرَانِي أَحْمِلُ فَوْقَ رَأْسِي خُبْزًا تَأْكُلُ الطَّيْرُ مِنْهُ ۖ نَبِّئْنَا بِتَأْوِيلِهِ ۖ إِنَّا نَرَاكَ مِنَ الْمُحْسِنِينَ
Now with him there came into the prison two young men. Said one of them: "I see myself (in a dream) pressing wine." said the other: "I see myself (in a dream) carrying bread on my head, and birds are eating, thereof." "Tell us" (they said) "The truth and meaning thereof: for we see thou art one that doth good (to all).
قَالَ لَا يَأْتِيكُمَا طَعَامٌ تُرْزَقَانِهِ إِلَّا نَبَّأْتُكُمَا بِتَأْوِيلِهِ قَبْلَ أَن يَأْتِيَكُمَا ۚ ذَٰلِكُمَا مِمَّا عَلَّمَنِي رَبِّي ۚ إِنِّي تَرَكْتُ مِلَّةَ قَوْمٍ لَّا يُؤْمِنُونَ بِاللَّهِ وَهُم بِالْآخِرَةِ هُمْ كَافِرُونَ
He said: "Before any food comes (in due course) to feed either of you, I will surely reveal to you the truth and meaning of this ere it befall you: that is part of the (duty) which my Lord hath taught me. I have (I assure you) abandoned the ways of a people that believe not in Allah and that (even) deny the Hereafter.
مَا تَعْبُدُونَ مِن دُونِهِ إِلَّا أَسْمَاءً سَمَّيْتُمُوهَا أَنتُمْ وَآبَاؤُكُم مَّا أَنزَلَ اللَّهُ بِهَا مِن سُلْطَانٍ ۚ إِنِ الْحُكْمُ إِلَّا لِلَّهِ ۚ أَمَرَ أَلَّا تَعْبُدُوا إِلَّا إِيَّاهُ ۚ ذَٰلِكَ الدِّينُ الْقَيِّمُ وَلَٰكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ
If not Him, ye worship nothing but names which ye have named,- ye and your fathers,- for which Allah hath sent down no authority: the command is for none but Allah: He hath commanded that ye worship none but Him: that is the right religion, but most men understand not.
قَالَ مَا خَطْبُكُنَّ إِذْ رَاوَدتُّنَّ يُوسُفَ عَن نَّفْسِهِ ۚ قُلْنَ حَاشَ لِلَّهِ مَا عَلِمْنَا عَلَيْهِ مِن سُوءٍ ۚ قَالَتِ امْرَأَتُ الْعَزِيزِ الْآنَ حَصْحَصَ الْحَقُّ أَنَا رَاوَدتُّهُ عَن نَّفْسِهِ وَإِنَّهُ لَمِنَ الصَّادِقِينَ
(The king) said (to the ladies): "What was your affair when ye did seek to seduce Joseph from his (true) self?" The ladies said: "Allah preserve us! no evil know we against him!" Said the ´Aziz´s wife: "Now is the truth manifest (to all): it was I who sought to seduce him from his (true) self: He is indeed of those who are (ever) true (and virtuous).
وَلَمَّا فَتَحُوا مَتَاعَهُمْ وَجَدُوا بِضَاعَتَهُمْ رُدَّتْ إِلَيْهِمْ ۖ قَالُوا يَا أَبَانَا مَا نَبْغِي ۖ هَٰذِهِ بِضَاعَتُنَا رُدَّتْ إِلَيْنَا ۖ وَنَمِيرُ أَهْلَنَا وَنَحْفَظُ أَخَانَا وَنَزْدَادُ كَيْلَ بَعِيرٍ ۖ ذَٰلِكَ كَيْلٌ يَسِيرٌ
Then when they opened their baggage, they found their stock-in-trade had been returned to them. They said: "O our father! What (more) can we desire? this our stock-in-trade has been returned to us: so we shall get (more) food for our family; We shall take care of our brother; and add (at the same time) a full camel´s load (of grain to our provisions). This is but a small quantity.
قَالَ لَنْ أُرْسِلَهُ مَعَكُمْ حَتَّىٰ تُؤْتُونِ مَوْثِقًا مِّنَ اللَّهِ لَتَأْتُنَّنِي بِهِ إِلَّا أَن يُحَاطَ بِكُمْ ۖ فَلَمَّا آتَوْهُ مَوْثِقَهُمْ قَالَ اللَّهُ عَلَىٰ مَا نَقُولُ وَكِيلٌ
(Jacob) said: "Never will I send him with you until ye swear a solemn oath to me, in Allah´s name, that ye will be sure to bring him back to me unless ye are yourselves hemmed in (and made powerless). And when they had sworn their solemn oath, he said: "Over all that we say, be Allah the witness and guardian.
وَلَمَّا دَخَلُوا مِنْ حَيْثُ أَمَرَهُمْ أَبُوهُم مَّا كَانَ يُغْنِي عَنْهُم مِّنَ اللَّهِ مِن شَيْءٍ إِلَّا حَاجَةً فِي نَفْسِ يَعْقُوبَ قَضَاهَا ۚ وَإِنَّهُ لَذُو عِلْمٍ لِّمَا عَلَّمْنَاهُ وَلَٰكِنَّ أَكْثَرَ النَّاسِ لَا يَعْلَمُونَ
And when they entered in the manner their father had enjoined, it did not profit them in the least against (the plan of) Allah: It was but a necessity of Jacob´s soul, which he discharged. For he was, by our instruction, full of knowledge (and experience): but most men know not.
فَبَدَأَ بِأَوْعِيَتِهِمْ قَبْلَ وِعَاءِ أَخِيهِ ثُمَّ اسْتَخْرَجَهَا مِن وِعَاءِ أَخِيهِ ۚ كَذَٰلِكَ كِدْنَا لِيُوسُفَ ۖ مَا كَانَ لِيَأْخُذَ أَخَاهُ فِي دِينِ الْمَلِكِ إِلَّا أَن يَشَاءَ اللَّهُ ۚ نَرْفَعُ دَرَجَاتٍ مَّن نَّشَاءُ ۗ وَفَوْقَ كُلِّ ذِي عِلْمٍ عَلِيمٌ
So he began (the search) with their baggage, before (he came to) the baggage of his brother: at length he brought it out of his brother´s baggage. Thus did We plan for Joseph. He could not take his brother by the law of the king except that Allah willed it (so). We raise to degrees (of wisdom) whom We please: but over all endued with knowledge is one, the All-Knowing.