وَءَاخَرِينَ مِنْهُمْ لَمَّا يَلْحَقُوا۟ بِهِمْ ۚ وَهُوَ ٱلْعَزِيزُ ٱلْحَكِيمُ Qur’an Al-Jumu'ah (62:3)Waakhareena minhum lamma yalhaqoo bihim wahuwa alAAazeezu alhakeemu
I.e., to cause the message of the Qur'an to reach people of other environments and of future times through the medium of the Arabs and their language: thus stressing the universality and timeless validity of all that has been revealed to Muhammad.
Others of them: i.e., others than those among whom the holy Prophet came as a messenger. In other words his Message is for his Arab people and his non-Arab contemporaries as well as those who live in other ages, and have no personal contact with him or his Companions.