«بَلْ نَتَوَازَنُ فِي الْمَقَالِ وَزْنَ الْمِثْقَالِ»
Rather, let our speech be weighed with the precision of a measure.
Natawāzanu conveys mutual balance; maqāl means speech; mithqāl is a weight or measure. The abstract idea of conversational fairness is made visible by the image of weighing.
He rejects a relation in which one party speaks without restraint while the other always accepts disrespect. His proposed answer is mutual respect in language.