Verse 15

إِذْ تَلَقَّوْنَهُۥ بِأَلْسِنَتِكُمْ وَتَقُولُونَ بِأَفْوَاهِكُم مَّا لَيْسَ لَكُم بِهِۦ عِلْمٌ وَتَحْسَبُونَهُۥ هَيِّنًا وَهُوَ عِندَ ٱللَّهِ عَظِيمٌ

When you made up with your tongues and you spread it with your mouths something that you had no knowledge thereof, and you reckoned that it was insignificant, while as far as God was concerned, it was grave.