Quran only means of achieving rank of righteous persons

God has introduced the messenger of God (peace of Allah be upon him and his descendants) under his guardianship. Friendship, faith in and acting Quran get us under guardianship of God. Quran is relationship between God and persons, shows path of guardianship and promote person to perfection. Therefore God has a lot of recommendations about Quran. Quran states
إِنَّ رَبَّكَ يَعْلَمُ أَنَّكَ تَقُومُ أَدْنَىٰ مِن ثُلُثَيِ اللَّيْلِ وَنِصْفَهُ وَثُلُثَهُ وَطَائِفَةٌ مِّنَ الَّذِينَ مَعَكَ ۚ وَاللَّهُ يُقَدِّرُ اللَّيْلَ وَالنَّهَارَ ۚ عَلِمَ أَن لَّن تُحْصُوهُ فَتَابَ عَلَيْكُمْ ۖ فَاقْرَءُوا مَا تَيَسَّرَ مِنَ الْقُرْآنِ ۚ عَلِمَ أَن سَيَكُونُ مِنكُم مَّرْضَىٰ ۙ وَآخَرُونَ يَضْرِبُونَ فِي الْأَرْضِ يَبْتَغُونَ مِن فَضْلِ اللَّهِ ۙ وَآخَرُونَ يُقَاتِلُونَ فِي سَبِيلِ اللَّهِ ۖ فَاقْرَءُوا مَا تَيَسَّرَ مِنْهُ ۚ وَأَقِيمُوا الصَّلَاةَ وَآتُوا الزَّكَاةَ وَأَقْرِضُوا اللَّهَ قَرْضًا حَسَنًا ۚ وَمَا تُقَدِّمُوا لِأَنفُسِكُم مِّنْ خَيْرٍ تَجِدُوهُ عِندَ اللَّهِ هُوَ خَيْرًا وَأَعْظَمَ أَجْرًا ۚ وَاسْتَغْفِرُوا اللَّهَ ۖ إِنَّ اللَّهَ غَفُورٌ رَّحِيمٌ
Thy Lord doth know that thou standest forth (to prayer) nigh two-thirds of the night, or half the night, or a third of the night, and so doth a party of those with thee. But Allah doth appoint night and day in due measure He knoweth that ye are unable to keep count thereof. So He hath turned to you (in mercy): read ye, therefore, of the Qur´an as much as may be easy for you. He knoweth that there may be (some) among you in ill-health; others travelling through the land, seeking of Allah´s bounty; yet others fighting in Allah´s Cause, read ye, therefore, as much of the Qur´an as may be easy (for you); and establish regular Prayer and give regular Charity; and loan to Allah a Beautiful Loan. And whatever good ye send forth for your souls ye shall find it in Allah´s Presence,- yea, better and greater, in Reward and seek ye the Grace of Allah: for Allah is Oft-Forgiving, Most Merciful.
وَإِذَا قُرِئَ الْقُرْآنُ فَاسْتَمِعُوا لَهُ وَأَنصِتُوا لَعَلَّكُمْ تُرْحَمُونَ
When the Qur´an is read, listen to it with attention, and hold your peace: that ye may receive Mercy.
أَفَلَا يَتَدَبَّرُونَ الْقُرْآنَ ۚ وَلَوْ كَانَ مِنْ عِندِ غَيْرِ اللَّهِ لَوَجَدُوا فِيهِ اخْتِلَافًا كَثِيرًا
Do they not consider the Qur´an (with care)? Had it been from other Than Allah, they would surely have found therein Much discrepancy.
إِنَّا سَنُلْقِي عَلَيْكَ قَوْلًا ثَقِيلًا
.Soon shall We send down to thee a weighty Message
وَلَقَدْ يَسَّرْنَا الْقُرْآنَ لِلذِّكْرِ فَهَلْ مِن مُّدَّكِرٍ
But We have indeed made the Qur´an easy to understand and remember: then is there any that will receive admonition?
All creatures in the sky and the earth are under order of God. Quran states
وَيَوْمَ يُنفَخُ فِي الصُّورِ فَفَزِعَ مَن فِي السَّمَاوَاتِ وَمَن فِي الْأَرْضِ إِلَّا مَن شَاءَ اللَّهُ ۚ وَكُلٌّ أَتَوْهُ دَاخِرِينَ
And the Day that the Trumpet will be sounded - then will be smitten with terror those who are in the heavens, and those who are on earth, except such as Allah will please (to exempt): and all shall come to His (Presence) as beings conscious of their lowliness.
الَّذِي يُوَسْوِسُ فِي صُدُورِ النَّاسِ
(The same) who whispers into the hearts of Mankind.
وَلَقَدْ خَلَقْنَا الْإِنسَانَ وَنَعْلَمُ مَا تُوَسْوِسُ بِهِ نَفْسُهُ ۖ وَنَحْنُ أَقْرَبُ إِلَيْهِ مِنْ حَبْلِ الْوَرِيدِ
It was We Who created man, and We know what dark suggestions his soul makes to him: for We are nearer to him than (his) jugular vein.
Quran states about persons that are under Satanic desires
اللَّهُ وَلِيُّ الَّذِينَ آمَنُوا يُخْرِجُهُم مِّنَ الظُّلُمَاتِ إِلَى النُّورِ ۖ وَالَّذِينَ كَفَرُوا أَوْلِيَاؤُهُمُ الطَّاغُوتُ يُخْرِجُونَهُم مِّنَ النُّورِ إِلَى الظُّلُمَاتِ ۗ أُولَٰئِكَ أَصْحَابُ النَّارِ ۖ هُمْ فِيهَا خَالِدُونَ
Allah is the Protector of those who have faith: from the depths of darkness He will lead them forth into light. Of those who reject faith the patrons are the evil ones: from light they will lead them forth into the depths of darkness. They will be companions of the fire, to dwell therein (For ever).
يَا بَنِي آدَمَ لَا يَفْتِنَنَّكُمُ الشَّيْطَانُ كَمَا أَخْرَجَ أَبَوَيْكُم مِّنَ الْجَنَّةِ يَنزِعُ عَنْهُمَا لِبَاسَهُمَا لِيُرِيَهُمَا سَوْآتِهِمَا ۗ إِنَّهُ يَرَاكُمْ هُوَ وَقَبِيلُهُ مِنْ حَيْثُ لَا تَرَوْنَهُمْ ۗ إِنَّا جَعَلْنَا الشَّيَاطِينَ أَوْلِيَاءَ لِلَّذِينَ لَا يُؤْمِنُونَ
O ye Children of Adam! Let not Satan seduce you, in the same manner as He got your parents out of the Garden, stripping them of their raiment, to expose their shame: for he and his tribe watch you from a position where ye cannot see them: We made the evil ones friends (only) to those without faith.
Quran states about the doomsday
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''.
يَوْمَئِذٍ يَوَدُّ الَّذِينَ كَفَرُوا وَعَصَوُا الرَّسُولَ لَوْ تُسَوَّىٰ بِهِمُ الْأَرْضُ وَلَا يَكْتُمُونَ اللَّهَ حَدِيثًا
On that day those who reject Faith and disobey the messenger will wish that the earth Were made one with them: But never will they hide a single fact from Allah.
يَوْمَ تُبْلَى السَّرَائِرُ
.The Day that (all) things secret will be tested
وَإِذْ يَتَحَاجُّونَ فِي النَّارِ فَيَقُولُ الضُّعَفَاءُ لِلَّذِينَ اسْتَكْبَرُوا إِنَّا كُنَّا لَكُمْ تَبَعًا فَهَلْ أَنتُم مُّغْنُونَ عَنَّا نَصِيبًا مِّنَ النَّارِ
Behold, they will dispute with each other in the Fire! The weak ones (who followed) will say to those who had been arrogant, "We but followed you: Can ye then take (on yourselves) from us some share of the Fire.
Tyrant persons say in the doomsday
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.
قَالُوا سَوَاءٌ عَلَيْنَا أَوَعَظْتَ أَمْ لَمْ تَكُن مِّنَ الْوَاعِظِينَ
They said: "It is the same to us whether thou admonish us or be not among (our) admonishers.
Tyrant persons said to the prophet in the world;
إِنَّ الَّذِينَ كَفَرُوا سَوَاءٌ عَلَيْهِمْ أَأَنذَرْتَهُمْ أَمْ لَمْ تُنذِرْهُمْ لَا يُؤْمِنُونَ
As to those who reject Faith, it is the same to them whether thou warn them or do not warn them; they will not believe.
God says to the prophet about them
وَإِن تَدْعُوهُمْ إِلَى الْهُدَىٰ لَا يَتَّبِعُوكُمْ ۚ سَوَاءٌ عَلَيْكُمْ أَدَعَوْتُمُوهُمْ أَمْ أَنتُمْ صَامِتُونَ
If ye call them to guidance, they will not obey: For you it is the same whether ye call them or ye hold your peace.
Polytheists say in the doomsday
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.
Quran states that Satan says
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.
يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لِمَا يُحْيِيكُمْ ۖ وَاعْلَمُوا أَنَّ اللَّهَ يَحُولُ بَيْنَ الْمَرْءِ وَقَلْبِهِ وَأَنَّهُ إِلَيْهِ تُحْشَرُونَ
O ye who believe! give your response to Allah and His Messenger, when He calleth you to that which will give you life; and know that Allah cometh in between a man and his heart, and that it is He to Whom ye shall (all) be gathered.
God states to persons
يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَجِيبُوا لِلَّهِ وَلِلرَّسُولِ إِذَا دَعَاكُمْ لِمَا يُحْيِيكُمْ ۖ وَاعْلَمُوا أَنَّ اللَّهَ يَحُولُ بَيْنَ الْمَرْءِ وَقَلْبِهِ وَأَنَّهُ إِلَيْهِ تُحْشَرُونَ
O ye who believe! give your response to Allah and His Messenger, when He calleth you to that which will give you life; and know that Allah cometh in between a man and his heart, and that it is He to Whom ye shall (all) be gathered.
Patient persons tolerate difficulties and use certain affection of God. Quran states
هُوَ الَّذِي خَلَقَ السَّمَاوَاتِ وَالْأَرْضَ فِي سِتَّةِ أَيَّامٍ ثُمَّ اسْتَوَىٰ عَلَى الْعَرْشِ ۚ يَعْلَمُ مَا يَلِجُ فِي الْأَرْضِ وَمَا يَخْرُجُ مِنْهَا وَمَا يَنزِلُ مِنَ السَّمَاءِ وَمَا يَعْرُجُ فِيهَا ۖ وَهُوَ مَعَكُمْ أَيْنَ مَا كُنتُمْ ۚ وَاللَّهُ بِمَا تَعْمَلُونَ بَصِيرٌ
He it is Who created the heavens and the earth in Six Days, and is moreover firmly established on the Throne (of Authority). He knows what enters within the earth and what comes forth out of it, what comes down from heaven and what mounts up to it. And He is with you wheresoever ye may be. And Allah sees well all that ye do.
يَا أَيُّهَا الَّذِينَ آمَنُوا اسْتَعِينُوا بِالصَّبْرِ وَالصَّلَاةِ ۚ إِنَّ اللَّهَ مَعَ الصَّابِرِينَ
O ye who believe! seek help with patient perseverance and prayer; for Allah is with those who patiently persevere.
وَاسْتَعِينُوا بِالصَّبْرِ وَالصَّلَاةِ ۚ وَإِنَّهَا لَكَبِيرَةٌ إِلَّا عَلَى الْخَاشِعِينَ
Nay, seek (Allah´s) help with patient perseverance and prayer: It is indeed hard, except to those who bring a lowly spirit.
Satan deceives persons and in the doomsday, reality appears as Quran states
قَالَتْ لَهُمْ رُسُلُهُمْ إِن نَّحْنُ إِلَّا بَشَرٌ مِّثْلُكُمْ وَلَٰكِنَّ اللَّهَ يَمُنُّ عَلَىٰ مَن يَشَاءُ مِنْ عِبَادِهِ ۖ وَمَا كَانَ لَنَا أَن نَّأْتِيَكُم بِسُلْطَانٍ إِلَّا بِإِذْنِ اللَّهِ ۚ وَعَلَى اللَّهِ فَلْيَتَوَكَّلِ الْمُؤْمِنُونَ
Their messengers said to them: "True, we are human like yourselves, but Allah doth grant His grace to such of his servants as He pleases. It is not for us to bring you an authority except as Allah permits. And on Allah let all men of faith put their trust.
Quran states about the story of Hazrat Adam and his wife
دَلَّاهُمَا بِغُرُورٍ ۚ فَلَمَّا ذَاقَا الشَّجَرَةَ بَدَتْ لَهُمَا سَوْآتُهُمَا وَطَفِقَا يَخْصِفَانِ عَلَيْهِمَا مِن وَرَقِ الْجَنَّةِ ۖ وَنَادَاهُمَا رَبُّهُمَا أَلَمْ أَنْهَكُمَا عَن تِلْكُمَا الشَّجَرَةِ وَأَقُل لَّكُمَا إِنَّ الشَّيْطَانَ لَكُمَا عَدُوٌّ مُّبِينٌ
So by deceit he brought about their fall: when they tasted of the tree, their shame became manifest to them, and they began to sew together the leaves of the garden over their bodies. And their Lord called unto them: "Did I not forbid you that tree, and tell you that Satan was an avowed enemy unto you.