And if you [people] deny [the message] - already nations before you (29:18)

Almuntakhab Fi Tafsir Alquran Alkarim

And should you consider the message a picture of falsehood, many generations before you accused their Messengers of falsehood and you must realize that the duty of the Messenger is only to relate to the people all that has been sent down to him of divine revelations and the elucidation of their text

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(29:18) And if you give the lie (to the Messenger), then many nations before you also gave the lie *30 (to their Messengers). The Messenger is charged with no other duty than to deliver the Message in clear terms.'

And if you [people] deny [the message] - already nations before you meaning

*30) That is, "If you reject my invitation to Tauhid and deny my message that you have to return to your Lord and render an account of your deeds, it will not be a new thing. In the history of mankind many Prophets-like Noah, Hud, Salih (on whom be Allah's peace) before also have brought the same teachings, and their peoples denied them likewise. Now you may judge for yourselves as to whether they harmed the Prophets or only themselves" .
 

And if you [people] deny [the message] - already nations before you meaning in Urdu

اور اگر تم جھٹلاتے ہو تو تم سے پہلے بہت سی قومیں جھٹلا چکی ہیں، اور رسول پر صاف صاف پیغام پہنچا دینے کے سوا کوئی ذمّہ داری نہیں ہے"