What does the Quran say about faith?

ٱلَّذِينَ يُؤْمِنُونَ بِٱلْغَيْبِ وَيُقِيمُونَ ٱلصَّلَوٰةَ وَمِمَّا رَزَقْنَٰهُمْ يُنفِقُونَ

Who believe in the unseen, establish prayer, and spend out of what We have provided for them,

وَٱلَّذِينَ يُؤْمِنُونَ بِمَآ أُنزِلَ إِلَيْكَ وَمَآ أُنزِلَ مِن قَبْلِكَ وَبِٱلْءَاخِرَةِ هُمْ يُوقِنُونَ

And who believe in what has been revealed to you, [O Muhammad], and what was revealed before you, and of the Hereafter they are certain [in faith].

أُو۟لَٰٓئِكَ عَلَىٰ هُدًۭى مِّن رَّبِّهِمْ ۖ وَأُو۟لَٰٓئِكَ هُمُ ٱلْمُفْلِحُونَ

Those are upon [right] guidance from their Lord, and it is those who are the successful.

إِنَّ ٱلَّذِينَ ءَامَنُوا۟ وَٱلَّذِينَ هَادُوا۟ وَٱلنَّصَٰرَىٰ وَٱلصَّٰبِـِٔينَ مَنْ ءَامَنَ بِٱللَّهِ وَٱلْيَوْمِ ٱلْءَاخِرِ وَعَمِلَ صَٰلِحًۭا فَلَهُمْ أَجْرُهُمْ عِندَ رَبِّهِمْ وَلَا خَوْفٌ عَلَيْهِمْ وَلَا هُمْ يَحْزَنُونَ

Indeed, those who believed and those who were Jews or Christians or Sabeans [before Prophet Muhammad] - those [among them] who believed in Allah and the Last Day and did righteousness - will have their reward with their Lord, and no fear will there be concerning them, nor will they grieve.

بَلَىٰ مَنْ أَسْلَمَ وَجْهَهُۥ لِلَّهِ وَهُوَ مُحْسِنٌۭ فَلَهُۥٓ أَجْرُهُۥ عِندَ رَبِّهِۦ وَلَا خَوْفٌ عَلَيْهِمْ وَلَا هُمْ يَحْزَنُونَ

Yes [on the contrary], whoever submits his face in Islam to Allah while being a doer of good will have his reward with his Lord. And no fear will there be concerning them, nor will they grieve.

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓا۟ ءَامِنُوا۟ بِٱللَّهِ وَرَسُولِهِۦ وَٱلْكِتَٰبِ ٱلَّذِى نَزَّلَ عَلَىٰ رَسُولِهِۦ وَٱلْكِتَٰبِ ٱلَّذِىٓ أَنزَلَ مِن قَبْلُ ۚ وَمَن يَكْفُرْ بِٱللَّهِ وَمَلَٰٓئِكَتِهِۦ وَكُتُبِهِۦ وَرُسُلِهِۦ وَٱلْيَوْمِ ٱلْءَاخِرِ فَقَدْ ضَلَّ ضَلَٰلًۢا بَعِيدًا

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.

إِنَّمَا ٱلْمُؤْمِنُونَ ٱلَّذِينَ إِذَا ذُكِرَ ٱللَّهُ وَجِلَتْ قُلُوبُهُمْ وَإِذَا تُلِيَتْ عَلَيْهِمْ ءَايَٰتُهُۥ زَادَتْهُمْ إِيمَٰنًۭا وَعَلَىٰ رَبِّهِمْ يَتَوَكَّلُونَ

The believers are only those who, when Allah is mentioned, their hearts become fearful, and when His verses are recited to them, it increases them in faith; and upon their Lord they rely -

ٱلَّذِينَ يُقِيمُونَ ٱلصَّلَوٰةَ وَمِمَّا رَزَقْنَٰهُمْ يُنفِقُونَ

The ones who establish prayer, and from what We have provided them, they spend.

أُو۟لَٰٓئِكَ هُمُ ٱلْمُؤْمِنُونَ حَقًّۭا ۚ لَّهُمْ دَرَجَٰتٌ عِندَ رَبِّهِمْ وَمَغْفِرَةٌۭ وَرِزْقٌۭ كَرِيمٌۭ

Those are the believers, truly. For them are degrees [of high position] with their Lord and forgiveness and noble provision.

إِنَّ ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ يَهْدِيهِمْ رَبُّهُم بِإِيمَٰنِهِمْ ۖ تَجْرِى مِن تَحْتِهِمُ ٱلْأَنْهَٰرُ فِى جَنَّٰتِ ٱلنَّعِيمِ

Indeed, those who have believed and done righteous deeds - their Lord will guide them because of their faith. Beneath them rivers will flow in the Gardens of Pleasure

مَنْ عَمِلَ صَٰلِحًۭا مِّن ذَكَرٍ أَوْ أُنثَىٰ وَهُوَ مُؤْمِنٌۭ فَلَنُحْيِيَنَّهُۥ حَيَوٰةًۭ طَيِّبَةًۭ ۖ وَلَنَجْزِيَنَّهُمْ أَجْرَهُم بِأَحْسَنِ مَا كَانُوا۟ يَعْمَلُونَ

Whoever does righteousness, whether male or female, while he is a believer - We will surely cause him to live a good life, and We will surely give them their reward [in the Hereafter] according to the best of what they used to do.

بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ قَدْ أَفْلَحَ ٱلْمُؤْمِنُونَ

Certainly will the believers have succeeded:

ٱلَّذِينَ هُمْ فِى صَلَاتِهِمْ خَٰشِعُونَ

They who are during their prayer humbly submissive

وَٱلَّذِينَ هُمْ عَنِ ٱللَّغْوِ مُعْرِضُونَ

And they who turn away from ill speech

وَٱلَّذِينَ هُمْ لِلزَّكَوٰةِ فَٰعِلُونَ

And they who are observant of zakah

وَٱلَّذِينَ هُمْ لِأَمَٰنَٰتِهِمْ وَعَهْدِهِمْ رَٰعُونَ

And they who are to their trusts and their promises attentive

وَٱلَّذِينَ هُمْ عَلَىٰ صَلَوَٰتِهِمْ يُحَافِظُونَ

And they who carefully maintain their prayers -

أُو۟لَٰٓئِكَ هُمُ ٱلْوَٰرِثُونَ

Those are the inheritors

ٱلَّذِينَ يَرِثُونَ ٱلْفِرْدَوْسَ هُمْ فِيهَا خَٰلِدُونَ

Who will inherit al-Firdaus. They will abide therein eternally.

إِنَّ ٱلَّذِينَ قَالُوا۟ رَبُّنَا ٱللَّهُ ثُمَّ ٱسْتَقَٰمُوا۟ فَلَا خَوْفٌ عَلَيْهِمْ وَلَا هُمْ يَحْزَنُونَ

Indeed, those who have said, "Our Lord is Allah," and then remained on a right course - there will be no fear concerning them, nor will they grieve.

۞ قَالَتِ ٱلْأَعْرَابُ ءَامَنَّا ۖ قُل لَّمْ تُؤْمِنُوا۟ وَلَٰكِن قُولُوٓا۟ أَسْلَمْنَا وَلَمَّا يَدْخُلِ ٱلْإِيمَٰنُ فِى قُلُوبِكُمْ ۖ وَإِن تُطِيعُوا۟ ٱللَّهَ وَرَسُولَهُۥ لَا يَلِتْكُم مِّنْ أَعْمَٰلِكُمْ شَيْـًٔا ۚ إِنَّ ٱللَّهَ غَفُورٌۭ رَّحِيمٌ

The bedouins say, "We have believed." Say, "You have not [yet] believed; but say [instead], 'We have submitted,' for faith has not yet entered your hearts. And if you obey Allah and His Messenger, He will not deprive you from your deeds of anything. Indeed, Allah is Forgiving and Merciful."

بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ وَٱلْعَصْرِ

By time,

إِنَّ ٱلْإِنسَٰنَ لَفِى خُسْرٍ

Indeed, mankind is in loss,

إِلَّا ٱلَّذِينَ ءَامَنُوا۟ وَعَمِلُوا۟ ٱلصَّٰلِحَٰتِ وَتَوَاصَوْا۟ بِٱلْحَقِّ وَتَوَاصَوْا۟ بِٱلصَّبْرِ

Except for those who have believed and done righteous deeds and advised each other to truth and advised each other to patience.