﴿ ۞ قَالَتْ رُسُلُهُمْ أَفِى ٱللَّهِ شَكٌّۭ فَاطِرِ ٱلسَّمَٰوَٰتِ وَٱلْأَرْضِ ۖ يَدْعُوكُمْ لِيَغْفِرَ لَكُم مِّن ذُنُوبِكُمْ وَيُؤَخِّرَكُمْ إِلَىٰٓ أَجَلٍۢ مُّسَمًّۭى ۚ قَالُوٓا۟ إِنْ أَنتُمْ إِلَّا بَشَرٌۭ مِّثْلُنَا تُرِيدُونَ أَن تَصُدُّونَا عَمَّا كَانَ يَعْبُدُ ءَابَآؤُنَا فَأْتُونَا بِسُلْطَٰنٍۢ مُّبِينٍۢ ﴾

“Said the apostles sent unto them: "Can there be any doubt about [the existence and oneness of] God, the Originator of the heavens and the earth? It is He who calls unto you, so that He may forgive you [whatever is past] of your sins and grant you respite until a term [set by Him is fulfilled]." [But] they replied: "You are nothing but mortal men like ourselves! You want to turn us away from what our forefathers were wont to worship: well, then, bring us a clear proof [of your being God's message-bearers]!"”

Please check ayah 14:12 for complete tafsir.