وَأَمَرَهُمْ بِطَاعَتِهِ وَنَهَاهُمْ عَنْ مَعْصِيَتِهِ
He commanded them to obey Him and forbade them from disobeying Him.
Reading the terms: Amarahum bi-ṭāʿatih directs obedience; nahāhum ʿan maʿṣiyatih forbids disobedience.
Boundary of meaning: Commands and prohibitions ground moral responsibility. Belief in predestination does not render these commands meaningless.
Takeaway: Allah commands obedience and forbids disobedience.