۞ وَقَالَ ٱللَّهُ لَا تَتَّخِذُوٓا۟ إِلَٰهَيْنِ ٱثْنَيْنِ ۖ إِنَّمَا هُوَ إِلَٰهٌۭ وَٰحِدٌۭ ۖ فَإِيَّٰىَ فَٱرْهَبُونِ
And Allah has said, "Do not take for yourselves two deities. He is but one God, so fear only Me."
And God has said ‘Do not choose two gods ithnayn is for emphasis. Truly there is only One God — He has added this statement to affirm His Divinity and Oneness — so be in awe of Me alone’ fear Me to the exclusion of anyone else — herein is a shift from the third person to the first.