And Allah knows what you conceal and what you declare. (16:19)

Almuntakhab Fi Tafsir Alquran Alkarim

And Allah is Alimun (Omniscient) of all that you converse secretly or whisper below your breath and of all that you suggest secretly to the mind, and He is well acquainted with all that the bosoms store of thoughts and feelings and with all that they forge, and He knows what you utter loudly and all that is being said

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(16:19) though He knows all that you conceal and all that you reveal. *18

And Allah knows what you conceal and what you declare. meaning

*18) A grave misunderstanding might arise as to why Allah's blessings should continue to be showered even on those who deny Him and set up partners with Him and are disobedient to Him. The foolish people are liable to conclude from this that He does not withhold His favours from such people because He has no knowledge of their wicked deeds, The Qur'an declares: "......Even though He has full knowledge of all the deeds of the people, whether these are done secretly or openly, He does not discontinue His blessings on the sinners, for He is Forgiving, Compassionate and Merciful. Therefore, O foolish people! , get rid of this misunderstanding, and reform yourselves."
 

And Allah knows what you conceal and what you declare. meaning in Urdu

حالانکہ وہ تمہارے کھلے سے بھی واقف ہے اور چھپے سے بھی