Non-Muslims can skip this. But it is short and maybe useful.
Surah 31:34
إِنَّ ٱللَّهَ عِندَهُۥ عِلْمُ ٱلسَّاعَةِ وَيُنَزِّلُ ٱلْغَيْثَ وَيَعْلَمُ مَا فِى ٱلْأَرْحَامِ ۖ وَمَا تَدْرِى نَفْسٌۭ مَّاذَا تَكْسِبُ غَدًۭا ۖ وَمَا تَدْرِى نَفْسٌۢ بِأَىِّ أَرْضٍۢ تَمُوتُ ۚ إِنَّ ٱللَّهَ عَلِيمٌ خَبِيرٌۢ ٣٤
AJ Arberry Surah 31:34 'Surely Allah -- He has knowledge of the Hour; He sends down the rain; He knows what is in the wombs. No Self knows what it shall earn tomorrow, and no Self knows in what land it shall die. Surely Allah is All-knowing, All-aware.'
OSTB : We do not know what we shall gain tomorrow and neither can we know in which land we will die. We just cannot predict these things. So dont let anyone come and tell you that they can predict what you will earn tomorrow. They are pulling a fast one.
Surah 72:25 قُلْ إِنْ أَدْرِىٓ أَقَرِيبٌۭ مَّا تُوعَدُونَ أَمْ يَجْعَلُ لَهُۥ رَبِّىٓ أَمَدًا ٢٥
Surah 72:25 AJ Arberry Say: 'I do not know whether that which you are promised is near, or whether my Lord will appoint for it a term
Surah 72:26 عَـٰلِمُ ٱلْغَيْبِ فَلَا يُظْهِرُ عَلَىٰ غَيْبِهِۦٓ أَحَدًا ٢٦
AJ Arberry Surah 72:26 He is the Knower of the Unseen, and He discloses not the Unseen to anyone,
OSTB : The future is also part of the unseen (ghaybi). No one other than Allah knows the unseen (ghaybi). No one knows the future either. Again dont let anyone come and tell you they know what is unseen, what is hidden, what will happen tomorrow, what anyone cannot possibly know. If they claim they can, they are pulling a fast one.
Surah 7:188 قُل لَّآ أَمْلِكُ لِنَفْسِى نَفْعًۭا وَلَا ضَرًّا إِلَّا مَا شَآءَ ٱللَّهُ ۚ وَلَوْ كُنتُ أَعْلَمُ ٱلْغَيْبَ لَٱسْتَكْثَرْتُ مِنَ ٱلْخَيْرِ وَمَا مَسَّنِىَ ٱلسُّوٓءُ ۚ إِنْ أَنَا۠ إِلَّا نَذِيرٌۭ وَبَشِيرٌۭ لِّقَوْمٍۢ يُؤْمِنُونَ ١٨٨
Surah 7:188 Say, “I have no power to benefit or protect myself, except by the Will of Allah. If I had known the unseen (ghayb), I would have benefited myself enormously, and no harm would have ever touched me. I am only a warner and deliverer of good news for those who believe.”
OSTB: Even the Messenger did not know the Unseen (ghayb). If the Messenger had "known the unseen (ghayb), I would have benefited myself enormously". Which means he did not know the Unseen and so he could not benefit himself enormously. Other than Allah no one can know the Unseen.
