The necessity of worshipping only Allah

قَالَ أَفَتَعْبُدُونَ مِن دُونِ ٱللَّهِ مَا لَا يَنفَعُكُمْ شَيْـًٔا وَلَا يَضُرُّكُمْ

He said, "Then do you worship instead of Allāh that which does not benefit you at all or harm you?