“Their hearts trifling...
“Their hearts trifling, and those who did wrong (to themselves) counsel together in secret (saying): ‘Is this (man) other than a human being like yourselves? Will you then go to sorcery while you see (it)?’” 4.
“He said: ‘My Lord knows (every) word (spoken) in the heaven and the earth, and He is the All-Hearing, the All-knowing’.” One of the signs of their turning back from the Truth has been pointed out in this verse, where it says: “Never comes to them a new reminder from their Lord, but they listen to it while they play.” But, if, even for one time, they take it earnestly, the path of their life may change at the same time.
Again, for a more emphasis, the verse implies that their hearts have sunk in vanity and ignorance. The verse says: “Their hearts trifling…” The reason of it is that they have outwardly taken all the earnest matters in play and joke; therefore, it is natural that such people will never find the way of felicity and prosperity.
Then, the Qur’an points to a part of their satanic plans, when the verse continues saying: “…and those who did wrong (to themselves) counsel together in secret (saying): ‘Is this (man) other than a human being like yourselves?…” They say to each other now that he is not more than an ordinary human being, then these extraordinary actions that he does and the penetration of his speech cannot be any thing but sorcery. If so, do you go toward sorcery?
The verse says: “…Will you then go to sorcery while you see (it)?’” In their saying, the disbelievers emphasized on two things: the first was that the Prophet (S) was a human being, and the second matter was the accusation of sorcery. Besides them, they accused him with some other false things, too, which will be rejected by the Qur’an through later verses.
The Qur’an, from the tongue of the holy Prophet (S), answers them in a general form, as follows: “He said: ‘My Lord knows (every) word (spoken) in the heaven and the earth, and He is the All-Hearing, the All-knowing’.” They should not imagine that their hidden plans and their concealed words are not revealed to Allah. It is not such, but “He is the All-Hearing, the All-Knowing”. Thus, He knows everything and is aware of all deeds.
Not only He hears the words but also He is aware of the thoughts which pass through the minds and the decisions that are concealed in the hearts.