Al-Anbiyaa • BN-TAFSEER-IBN-E-KASEER
﴿ وَإِذَا رَءَاكَ ٱلَّذِينَ كَفَرُوٓا۟ إِن يَتَّخِذُونَكَ إِلَّا هُزُوًا أَهَٰذَا ٱلَّذِى يَذْكُرُ ءَالِهَتَكُمْ وَهُم بِذِكْرِ ٱلرَّحْمَٰنِ هُمْ كَٰفِرُونَ ﴾
“But [thus it is:] whenever they who are bent on denying the truth consider thee, they make thee but a target of their mockery, [saying to one another,] “Is this the one who speaks [so contemptuously] of your gods?” and yet, it is they themselves who, at [every] mention of the Most Gracious, are wont to deny the truth!”
Please check ayah 21:37 for complete tafsir.