speaking without knowledge

وَقَالَتِ ٱلْيَهُودُ لَيْسَتِ ٱلنَّصَـٰرَىٰ عَلَىٰ شَىْءٍ وَقَالَتِ ٱلنَّصَـٰرَىٰ لَيْسَتِ ٱلْيَهُودُ عَلَىٰ شَىْءٍ وَهُمْ يَتْلُونَ ٱلْكِتَـٰبَ ۗ كَذَٰلِكَ قَالَ ٱلَّذِينَ لَا يَعْلَمُونَ مِثْلَ قَوْلِهِمْ ۚ فَٱللَّهُ يَحْكُمُ بَيْنَهُمْ يَوْمَ ٱلْقِيَـٰمَةِ فِيمَا كَانُوا۟ فِيهِ يَخْتَلِفُونَ

The Jews say, "The Christians have nothing [true] to stand on," and the Christians say, "The Jews have nothing to stand on," although they [both] recite the Scripture. Thus do those who know not [i.e., the polytheists] speak the same as their words. But Allāh will judge between them on the Day of Resurrection concerning that over which they used to differ.

وَقَدْ كَفَرُوا۟ بِهِۦ مِن قَبْلُ ۖ وَيَقْذِفُونَ بِٱلْغَيْبِ مِن مَّكَانٍۭ بَعِيدٍ

And they had already disbelieved in it before and would assault the unseen from a place far away.