إِنَّ ٱللَّهَ يَعْلَمُ غَيْبَ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ ۚ وَٱللَّهُ بَصِيرٌۢ بِمَا تَعْمَلُونَ
Indeed, Allah knows the unseen [aspects] of the heavens and the earth. And Allah is Seeing of what you do.
The Rooms
إِنَّ ٱللَّهَ يَعْلَمُ غَيْبَ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ ۚ وَٱللَّهُ بَصِيرٌۢ بِمَا تَعْمَلُونَ
Indeed, Allah knows the unseen [aspects] of the heavens and the earth. And Allah is Seeing of what you do.
Nearby ayahs help place verse 49:18 in sequence and meaning.
قُلْ أَتُعَلِّمُونَ ٱللَّهَ بِدِينِكُمْ وَٱللَّهُ يَعْلَمُ مَا فِى ٱلسَّمَـٰوَٰتِ وَمَا فِى ٱلْأَرْضِ ۚ وَٱللَّهُ بِكُلِّ شَىْءٍ عَلِيمٌ
Say, "Would you acquaint Allah with your religion while Allah knows whatever is in the heavens and whatever is on the earth, and Allah is Knowing of all things?"
يَمُنُّونَ عَلَيْكَ أَنْ أَسْلَمُوا۟ ۖ قُل لَّا تَمُنُّوا۟ عَلَىَّ إِسْلَـٰمَكُم ۖ بَلِ ٱللَّهُ يَمُنُّ عَلَيْكُمْ أَنْ هَدَىٰكُمْ لِلْإِيمَـٰنِ إِن كُنتُمْ صَـٰدِقِينَ
They consider it a favor to you that they have accepted Islam. Say, "Do not consider your Islam a favor to me. Rather, Allah has conferred favor upon you that He has guided you to the faith, if you should be truthful."