Distinction between divine revelation and human composition

وَمَا عَلَّمْنَـٰهُ ٱلشِّعْرَ وَمَا يَنۢبَغِى لَهُۥٓ ۚ إِنْ هُوَ إِلَّا ذِكْرٌ وَقُرْءَانٌ مُّبِينٌ

And We did not give him [i.e., Prophet Muḥammad (ﷺ)] knowledge of poetry, nor is it befitting for him. It is not but a message and a clear Qur’ān

وَمَا هُوَ بِقَوْلِ شَاعِرٍ ۚ قَلِيلًا مَّا تُؤْمِنُونَ

And it is not the word of a poet; little do you believe.