﴿ وَيَضِيقُ صَدْرِى وَلَا يَنطَلِقُ لِسَانِى فَأَرْسِلْ إِلَىٰ هَٰرُونَ ﴾

“and then my breast will be straitened and my tongue will not be free: send, then, [this Thy command] to Aaron.”

and that anguish will constrain my breast because of their denial of me and that my tongue will not utter clearly to deliver the Message because of the knot in it. So give the Mission to my brother Aaron alongside me.