Say: “For me, I (work) on a clear sign from my Lord, but ye reject Him. What ye would see hastened, is not in my power. The command rests with none but Allah: He declares the truth, and He is the best of judges.”
Ibn Kathir writes,
Say: “I am on clear proof from my Lord…”
means: I have a clear understanding of the Law
of Allah that He has revealed to me,
but you deny it.
meaning, but you disbelieve in the truth that
came to me from Allah.
I do not have what you are hastily seeking,
meaning, the torment,
The decision is only for Allah,
for the ruling of this is with Allah. If He wills, He
will punish you soon in response to your wish! If
He wills, He will give you respite, out of His great
This is why Allah said,
He declares the truth, and He is the best of judges.
and the best in reckoning between His servants.
Say: “If I had that which you are asking for impatiently
(the torment), the matter would have been settled at
once between you and I,”
means, if I have what you ask for, I will surely
send down what you deserve of it,
but Allah knows best the wrongdoers.
Only Allah Knows the Unseen
Allah said next,
And with Him are the keys of the Ghayb (all that is
hidden), none knows them but He.
Al-Bukhari recorded that Salim bin Abdullah said that his
father said that the Messenger of Allah said,
The keys of the Unseen are five and none except Allah knows them:
Verily, Allah! With Him (Alone) is the knowledge of the Hour,
• He sends down the rain, • and knows that which is in the wombs.
• No person knows what he will earn tomorrow,
• and no person knows in what land he will die. Verily, Allah is All-Knower, All-Aware.” (31:34)
And He knows whatever there is on the land and in the sea; means, Allah’s honored knowledge encompasses everything, including the creatures living in the sea and on land, and none of it, not even the weight of an atom on earth or in heaven, ever escapes His knowledge. Allah’s statement, not a leaf falls, but He knows it.
means, He knows the movements of everything including inanimate things. Therefore, what about His knowledge of the living creatures, especially,
those whom the Divine laws have been imposed
upon such as mankind and the Jinns.
In another Ayah, Allah said;
Allah knows the fraud of the eyes, and all
that the breasts conceal. (40:19)
There is not a grain in the darkness of the earth nor
anything fresh or dry, but is written in a Clear Record.
Kathir, Ibn. Tafsir Ibn Kathir. (surah 6 verse 57). https://archive.org/details/TafseerIbnKathirenglish114SurahsComplete