“Indeed, He knows the thoughts you reveal and that which you conceal.”
Sayyed Abbas Sadr-Ameli
Verily He knows what is spoken aloud and He knows what you conceal
Al-muntakhab fi tafsir al-Qur'an al-Karim
"He -Allah- knows what is avowed openly and the open course of action, and He knows what the breasts forge and what they store of thoughts and feelings and all that is suggested secretly to the mind. He .knows all that you do out of sight"
But if they turn back then say, "I have announced (the message) to all of you equally, and I do not know whether that which you are promised is near or far.