"And let not their speech grieve you." This is addressed to the Prophet, peace and blessings of Allah be upon him, regarding the saying of the polytheists to him: that you are possessed, that you are a sorcerer, that you are a liar, and that you are a poet. "Indeed, all honor belongs to Allah," so He will grant you victory over them.
﴿وَلَا يحزنك قَوْلهم﴾
يَقُولُهُ لِلنَّبِيِّ ﷺ لِقَوْلِ الْمُشْرِكِينَ لَهُ: إِنَّكَ مجنونٌ، وَإِنَّكَ ساحرٌ، وَإِنَّكَ كاذبٌ، وَإِنَّكَ شاعرٌ.
﴿إِنَّ الْعِزَّةَ لِلَّهِ جَمِيعًا﴾ فينصرك عَلَيْهِم.