18وَإِن تُكَذِّبوا فَقَد كَذَّبَ أُمَمٌ مِن قَبلِكُم ۖ وَما عَلَى الرَّسولِ إِلَّا البَلاغُ المُبينُShabbir AhmedAnd if you deny - well, nations before you have denied the Truth (and suffered the consequences). The duty of a Messenger is only to convey the Message clearly."