﴿ ۞ وَقَالَ ٱللَّهُ لَا تَتَّخِذُوٓا۟ إِلَٰهَيْنِ ٱثْنَيْنِ ۖ إِنَّمَا هُوَ إِلَٰهٌۭ وَٰحِدٌۭ ۖ فَإِيَّٰىَ فَٱرْهَبُونِ ﴾

“And God has said: "Do not take to worshipping two [or more] deities. He is the One and Only God: hence, of Me, of Me alone stand in awe!"”

Please check ayah 16:55 for complete tafsir.