18وَإِن تُكَذِّبوا فَقَد كَذَّبَ أُمَمٌ مِن قَبلِكُم ۖ وَما عَلَى الرَّسولِ إِلَّا البَلاغُ المُبينُRashad KhalifaIf you disbelieve, generations before you have also disbelieved. The sole function of the messenger is to deliver (the message).