لِأَنَّ الْعِلْمَ عِلْمَانِ: عِلْمٌ فِي الْخَلْقِ مَوْجُودٌ، وَعِلْمٌ فِي الْخَلْقِ مَفْقُودٌ
Knowledge is of two kinds: knowledge present among creatures and knowledge withheld from them.
Available knowledge is what Allah has disclosed to His servants; withheld knowledge is what they have not been allowed to know. The concealed mystery of predestination belongs to the second category. Confusing these categories distorts both faith and understanding.