Allah said,

﴿فَكَيْفَ إِذَا جِئْنَا مِن كُلِّ أمَّةٍ بِشَهِيدٍ وَجِئْنَا بِكَ عَلَى هَـؤُلاءِ شَهِيداً ﴾

(How (will it be) then, when We bring from each nation a witness and We bring you (O Muhammad) as a witness against these people) Allah describes the horrors, hardships and difficulties of the Day of Resurrection, saying, how would it be on that Day when there will be a witness from every nation, meaning the Prophets, just as Allah said;

﴿وَأَشْرَقَتِ الاٌّرْضُ بِنُورِ رَبِّهَا وَوُضِعَ الْكِتَـبُ وَجِـىءَ بِالنَّبِيِّيْنَ وَالشُّهَدَآءِ﴾

(And the earth will shine with the light of its Lord, and the Book will be placed (open); and the Prophets and the witnesses will be brought forward), and,

﴿وَيَوْمَ نَبْعَثُ فِى كُلِّ أُمَّةٍ شَهِيدًا عَلَيْهِمْ مِّنْ أَنفُسِهِمْ﴾

(And (remember) the Day when We shall raise up from every nation a witness against them from amongst themselves). Al-Bukhari recorded that `Abdullah bin Mas`ud said, "The Messenger of Allah said to me, `Recite to me.' I said, `O Messenger of Allah! Should I recite (the Qur'an) to you, while it was revealed to you' He said, `Yes, for I like to hear it from other people.' I recited Surat An-Nisa' until I reached this Ayah,

﴿فَكَيْفَ إِذَا جِئْنَا مِن كُلِّ أمَّةٍ بِشَهِيدٍ وَجِئْنَا بِكَ عَلَى هَـؤُلاءِ شَهِيداً ﴾

(How (will it be) then, when We bring from each nation a witness and We bring you (O Muhammad) as a witness against these people) He then said, `Stop now.' I found that his eyes were tearful.'' Allah's statement,

﴿يَوْمَئِذٍ يَوَدُّ الَّذِينَ كَفَرُواْ وَعَصَوُاْ الرَّسُولَ لَوْ تُسَوَّى بِهِمُ الاٌّرْضُ وَلاَ يَكْتُمُونَ اللَّهَ حَدِيثاً ﴾

(On that day those who disbelieved and disobeyed the Messenger will wish that they were buried in the earth, but they will never be able to hide a single fact from Allah.) means, they will wish that the earth would open up and swallow them because of the horror of the gathering place and the disgrace, dishonor and humiliation they will suffer on that Day. This is similar to Allah's statement,

﴿يَوْمَ يَنظُرُ الْمَرْءُ مَا قَدَّمَتْ يَدَاهُ﴾

(The Day when man will see that (the deeds) which his hands have sent forth) Allah then said,

﴿وَلاَ يَكْتُمُونَ اللَّهَ حَدِيثاً﴾

(but they will never be able to hide a single fact from Allah.) indicating that they will admit to everything they did and will not hide any of it. `Abdur-Razzaq recorded that Sa`id bin Jubayr said, "A man came to Ibn `Abbas and said to him, `There are things that confuse me in the Qur'an.' Ibn `Abbas said, `What things do you have doubts about in the Qur'an' He said, `Not doubts, but rather confusing things.' Ibn `Abbas said, `Tell me what caused you confusion.' He said, `I hear Allah's statement,

﴿ثُمَّ لَمْ تَكُنْ فِتْنَتُهُمْ إِلاَّ أَن قَالُواْ وَاللَّهِ رَبِّنَا مَا كُنَّا مُشْرِكِينَ ﴾

(There will then be no test for them but to say: "By Allah, our Lord, we were not those who joined others in worship with Allah.'') but He also says,

﴿وَلاَ يَكْتُمُونَ اللَّهَ حَدِيثاً﴾

(but they will never be able to hide a single fact from Allah.) They have indeed hid something.' Ibn `Abbas said, `As for Allah's statement,

﴿ثُمَّ لَمْ تَكُنْ فِتْنَتُهُمْ إِلاَّ أَن قَالُواْ وَاللَّهِ رَبِّنَا مَا كُنَّا مُشْرِكِينَ ﴾

(There will then be no test for them but to say: "By Allah, our Lord, we were not those who joined others in worship with Allah.''), when they see that on the Day of Resurrection that Allah does not forgive, except for the people of Islam, and that He forgives the sins, no matter how big they are, except Shirk, then the Mushriks will lie. They will say,

﴿وَاللَّهِ رَبِّنَا مَا كُنَّا مُشْرِكِينَ﴾

("By Allah, our Lord, we were not those who joined others in worship with Allah.''), hoping that Allah will forgive them. However, Allah will then seal their mouths, and their hands and feet will disclose what they used to do. Then,

﴿يَوَدُّ الَّذِينَ كَفَرُواْ وَعَصَوُاْ الرَّسُولَ لَوْ تُسَوَّى بِهِمُ الاٌّرْضُ وَلاَ يَكْتُمُونَ اللَّهَ حَدِيثاً﴾

(those who disbelieved and disobeyed the Messenger will wish that they were buried in the earth, but they will never be able to hide a single fact from Allah. )'''

﴿يَـأَيُّهَا الَّذِينَلاَ تَقْرَبُواْ الصَّلَوةَ وَأَنتُمْ سُكَـرَى حَتَّى تَعْلَمُواْ مَا تَقُولُونَ وَلاَ جُنُباً إِلاَّ عَابِرِى سَبِيلٍ حَتَّى تَغْتَسِلُواْ وَإِنْ كُنتُم مَّرْضَى أَوْ عَلَى سَفَرٍ أَوْ جَآءَ أَحَدٌ مِّنْكُمْ مِّن الْغَآئِطِ أَوْ لَـمَسْتُمُ النِّسَآءَ فَلَمْ تَجِدُواْ مَآءً فَتَيَمَّمُواْ صَعِيداً طَيِّباً فَامْسَحُواْ بِوُجُوهِكُمْ وَأَيْدِيَكُمْ إِنَّ اللَّهَ كَانَ عَفُوّاً غَفُوراً﴾

(43. O you who believe! Do not approach Salah while you are in a druken state until you know what you are saying, nor while Junub (sexually impure), except while passing through, until you bathe (your entire body), and if you are ill, or on a journey, or one of you comes from the Gha'it (toilet), or from Lamastum (touching) women, but you do not find water, then perform Tayammum with clean earth, rubbing your faces and hands. Truly, Allah is Ever Oft-Pardoning, Oft-Forgiving.)