The root ع ل ن (ʿ-l-n) in the Quran

أَوَلَا يَعْلَمُونَ أَنَّ ٱللَّهَ يَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ ۝٧٧

But do they not know that Allāh knows what they conceal and what they declare?

ٱلَّذِينَ يُنفِقُونَ أَمْوَٰلَهُم بِٱلَّيْلِ وَٱلنَّهَارِ سِرًّا وَعَلَانِيَةً فَلَهُمْ أَجْرُهُمْ عِندَ رَبِّهِمْ وَلَا خَوْفٌ عَلَيْهِمْ وَلَا هُمْ يَحْزَنُونَ ۝٢٧٤

Those who spend their wealth [in Allāh's way] by night and by day, secretly and publicly - they will have their reward with their Lord. And no fear will there be concerning them, nor will they grieve.

أَلَآ إِنَّهُمْ يَثْنُونَ صُدُورَهُمْ لِيَسْتَخْفُوا۟ مِنْهُ أَلَا حِينَ يَسْتَغْشُونَ ثِيَابَهُمْ يَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ إِنَّهُۥ عَلِيمٌۢ بِذَاتِ ٱلصُّدُورِ ۝٥

Unquestionably, they [i.e., the disbelievers] turn away their breasts to hide themselves from him. Unquestionably, [even] when they cover themselves in their clothing, He [i.e., Allāh] knows what they conceal and what they declare. Indeed, He is Knowing of that within the breasts.

وَٱلَّذِينَ صَبَرُوا۟ ٱبْتِغَآءَ وَجْهِ رَبِّهِمْ وَأَقَامُوا۟ ٱلصَّلَوٰةَ وَأَنفَقُوا۟ مِمَّا رَزَقْنَٰهُمْ سِرًّا وَعَلَانِيَةً وَيَدْرَءُونَ بِٱلْحَسَنَةِ ٱلسَّيِّئَةَ أُو۟لَٰٓئِكَ لَهُمْ عُقْبَى ٱلدَّارِ ۝٢٢

And those who are patient, seeking the face [i.e., acceptance] of their Lord, and establish prayer and spend from what We have provided for them secretly and publicly and prevent evil with good - those will have the good consequence of [this] home -

قُل لِّعِبَادِىَ ٱلَّذِينَ ءَامَنُوا۟ يُقِيمُوا۟ ٱلصَّلَوٰةَ وَيُنفِقُوا۟ مِمَّا رَزَقْنَٰهُمْ سِرًّا وَعَلَانِيَةً مِّن قَبْلِ أَن يَأْتِىَ يَوْمٌ لَّا بَيْعٌ فِيهِ وَلَا خِلَٰلٌ ۝٣١

[O Muḥammad], tell My servants who have believed to establish prayer and spend from what We have provided them, secretly and publicly, before a Day comes in which there will be no exchange [i.e., ransom], nor any friendships.

رَبَّنَآ إِنَّكَ تَعْلَمُ مَا نُخْفِى وَمَا نُعْلِنُ وَمَا يَخْفَىٰ عَلَى ٱللَّهِ مِن شَىْءٍ فِى ٱلْأَرْضِ وَلَا فِى ٱلسَّمَآءِ ۝٣٨

Our Lord, indeed You know what we conceal and what we declare, and nothing is hidden from Allāh on the earth or in the heaven.

وَٱللَّهُ يَعْلَمُ مَا تُسِرُّونَ وَمَا تُعْلِنُونَ ۝١٩

And Allāh knows what you conceal and what you declare.

لَا جَرَمَ أَنَّ ٱللَّهَ يَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ إِنَّهُۥ لَا يُحِبُّ ٱلْمُسْتَكْبِرِينَ ۝٢٣

Assuredly, Allāh knows what they conceal and what they declare. Indeed, He does not like the arrogant.

أَلَّا يَسْجُدُوا۟ لِلَّهِ ٱلَّذِى يُخْرِجُ ٱلْخَبْءَ فِى ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ وَيَعْلَمُ مَا تُخْفُونَ وَمَا تُعْلِنُونَ ۝٢٥

[And] so they do not prostrate to Allāh, who brings forth what is hidden within the heavens and the earth and knows what you conceal and what you declare -

وَإِنَّ رَبَّكَ لَيَعْلَمُ مَا تُكِنُّ صُدُورُهُمْ وَمَا يُعْلِنُونَ ۝٧٤

And indeed, your Lord knows what their breasts conceal and what they declare.

وَرَبُّكَ يَعْلَمُ مَا تُكِنُّ صُدُورُهُمْ وَمَا يُعْلِنُونَ ۝٦٩

And your Lord knows what their breasts conceal and what they declare.

إِنَّ ٱلَّذِينَ يَتْلُونَ كِتَٰبَ ٱللَّهِ وَأَقَامُوا۟ ٱلصَّلَوٰةَ وَأَنفَقُوا۟ مِمَّا رَزَقْنَٰهُمْ سِرًّا وَعَلَانِيَةً يَرْجُونَ تِجَٰرَةً لَّن تَبُورَ ۝٢٩

Indeed, those who recite the Book of Allāh and establish prayer and spend [in His cause] out of what We have provided them, secretly and publicly, [can] expect a transaction [i.e., profit] that will never perish -

فَلَا يَحْزُنكَ قَوْلُهُمْ إِنَّا نَعْلَمُ مَا يُسِرُّونَ وَمَا يُعْلِنُونَ ۝٧٦

So let not their speech grieve you. Indeed, We know what they conceal and what they declare.

يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَتَّخِذُوا۟ عَدُوِّى وَعَدُوَّكُمْ أَوْلِيَآءَ تُلْقُونَ إِلَيْهِم بِٱلْمَوَدَّةِ وَقَدْ كَفَرُوا۟ بِمَا جَآءَكُم مِّنَ ٱلْحَقِّ يُخْرِجُونَ ٱلرَّسُولَ وَإِيَّاكُمْ أَن تُؤْمِنُوا۟ بِٱللَّهِ رَبِّكُمْ إِن كُنتُمْ خَرَجْتُمْ جِهَٰدًا فِى سَبِيلِى وَٱبْتِغَآءَ مَرْضَاتِى تُسِرُّونَ إِلَيْهِم بِٱلْمَوَدَّةِ وَأَنَا۠ أَعْلَمُ بِمَآ أَخْفَيْتُمْ وَمَآ أَعْلَنتُمْ وَمَن يَفْعَلْهُ مِنكُمْ فَقَدْ ضَلَّ سَوَآءَ ٱلسَّبِيلِ ۝١

O you who have believed, do not take My enemies and your enemies as allies, extending to them affection while they have disbelieved in what came to you of the truth, having driven out the Prophet and yourselves [only] because you believe in Allāh, your Lord. If you have come out for jihād [i.e., fighting or striving] in My cause and seeking means to My approval, [take them not as friends]. You confide to them affection [i.e., instruction], but I am most knowing of what you have concealed and what you have declared. And whoever does it among you has certainly strayed from the soundness of the way.

يَعْلَمُ مَا فِى ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ وَيَعْلَمُ مَا تُسِرُّونَ وَمَا تُعْلِنُونَ وَٱللَّهُ عَلِيمٌۢ بِذَاتِ ٱلصُّدُورِ ۝٤

He knows what is within the heavens and earth and knows what you conceal and what you declare. And Allāh is Knowing of that within the breasts.

ثُمَّ إِنِّىٓ أَعْلَنتُ لَهُمْ وَأَسْرَرْتُ لَهُمْ إِسْرَارًا ۝٩

Then I announced to them and [also] confided to them secretly