Accountability for speech

وَلَئِن سَأَلْتَهُمْ لَيَقُولُنَّ إِنَّمَا كُنَّا نَخُوضُ وَنَلْعَبُ ۚ قُلْ أَبِٱللَّهِ وَءَايَـٰتِهِۦ وَرَسُولِهِۦ كُنتُمْ تَسْتَهْزِءُونَ

And if you ask them, they will surely say, "We were only conversing and playing." Say, "Is it Allāh and His verses and His Messenger that you were mocking?"

وَكُنَّا نَخُوضُ مَعَ ٱلْخَآئِضِينَ

And we used to enter into vain discourse with those who engaged [in it],

وَلِسَانًا وَشَفَتَيْنِ

And a tongue and two lips?