﴿ لَا يُؤْمِنُونَ بِهِۦ ۖ وَقَدْ خَلَتْ سُنَّةُ ٱلْأَوَّلِينَ ﴾

“who do not believe in it, although the way which those [evildoers] of olden times had to go has long been within their ken.”

They do not believe in him in the Prophet s even though the example of the men of old has already gone before that is the way of God in dealing with them those of old by chastising them for denying the truthfulness of their prophets those Meccans are like these former.