28:34
وَأَخِى هَـٰرُونُ هُوَ أَفْصَحُ مِنِّى لِسَانًا فَأَرْسِلْهُ مَعِىَ رِدْءًا يُصَدِّقُنِىٓ ۖ إِنِّىٓ أَخَافُ أَن يُكَذِّبُونِ
wa-akhī hārūnu huwa afṣaḥu minnī lisānan fa-arsil'hu maʿiya rid'an yuṣaddiqunī innī akhāfu an yukadhibūni
My brother Aaron is more eloquent than I: send him with me to help me and confirm my words- I fear they may call me a liar.’
"And my brother Hârûn (Aaron) - he is more eloquent in speech than me: so send him with me as a helper to confirm me. Verily I fear that they will belie me."