﴿ قَدْ نَعْلَمُ إِنَّهُۥ لَيَحْزُنُكَ ٱلَّذِى يَقُولُونَ ۖ فَإِنَّهُمْ لَا يُكَذِّبُونَكَ وَلَٰكِنَّ ٱلظَّٰلِمِينَ بِـَٔايَٰتِ ٱللَّهِ يَجْحَدُونَ ﴾

“Well do We know that what such people say grieves thee indeed: yet, behold, it is not thee to whom they give the lie, but God's messages do these evildoers deny.”

Please check ayah 6:36 for complete tafsir.