﴿ فَلَا تَدْعُ مَعَ ٱللَّهِ إِلَٰهًا ءَاخَرَ فَتَكُونَ مِنَ ٱلْمُعَذَّبِينَ ﴾

“Hence, [O man,] do not invoke any other deity side by side with God, lest thou find thyself among those who are made to suffer [on Judgment Day].”

So do not invoke any other god with God lest you be among the chastised — if you were to do what they call you to.