﴿ وَمَا مَنَعَ ٱلنَّاسَ أَن يُؤْمِنُوٓا۟ إِذْ جَآءَهُمُ ٱلْهُدَىٰٓ إِلَّآ أَن قَالُوٓا۟ أَبَعَثَ ٱللَّهُ بَشَرًۭا رَّسُولًۭا ﴾

“Yet whenever [God's] guidance came to them [through a prophet,] nothing has ever kept people from believing [in him] save this their objection: "Would God have sent a [mere] mortal man as His apostle?"”

And nothing prevented mankind from believing when guidance came to them but that they said that is except their saying in denial ‘Has God sent a human as a messenger from Him?’ instead of sending an angel.