Word by Word Analysis

فَلَنَأْتِيَنَّكَ بِسِحْرٍ مِّثْلِهِۦ فَٱجْعَلْ بَيْنَنَا وَبَيْنَكَ مَوْعِدًا لَّا نُخْلِفُهُۥ نَحْنُ وَلَآ أَنتَ مَكَانًا سُوًى 58

Then we will surely bring you magic like it, so make between us and you an appointment, which we will not fail to keep and neither will you, in a place assigned."