Part 8 (AYAT-AL-KURSI)

The sixth sentence is يَعۡلَمُ مَا بَيۡنَ أَيۡدِيهِمۡ وَمَا خَلۡفَهُمۡ‌ۖ, "HE KNOWS WHAT IS BEFORE THEM AND WHAT IS BEHIND THEM". 

'Before' and 'after' may mean that Allah Ta'alah is aware of all situations and events before their birth and after their birth. It may also mean that 'before' refers to situations and events known to a person, and 'after' refers to situations and events which are hidden from him. It means that while human knowledge encompasses some things but does not cover other things, but for Allah Ta'alah hidden and known are the same. His knowledge encompasses all these things equally.

There is no contradiction in these two meanings as both are included in the overall meaning of this verse.

From Ma'ariful Quran, by Mufti Muhammad Shafi RE