In the Qur’an Allāh (Subḥānahu ūta'āla) speaks directly to people and to the Prophet (sallallahu 'alayhi wa sallam), often using ‘We’, the first person plural of majesty, to represent Himself. For example:
‘It was We who created you: will you not believe? Consider (the sperm) you eject - do you create it yourselves or are We the Creator? We ordained death to be among you. Nothing could stop Us if We intended to change you and recreate you in a way unknown to you. You have learned how you were first created: will you not reflect? Consider the seeds you sow in the ground - is it you who make them grow or We? If We wished, We could turn your harvest into chaff and leave you to wail: “We are burdened with debt; we are bereft.” Consider the water you drink - was it you who brought it down from the rain-cloud or We? If We wanted, We could make it bitter: will you not be thankful? Consider the fire you kindle - is it you who make the wood for it grow or We? We made it a reminder, and useful to those who kindle it, so (Prophet) glorify the name of your Lord, the Supreme.’
(Al-Waqi‘a: 57-73).
Notice the words: 'glorify the name of your Lord, the Supreme'. These are singular. There is only one God in Islam.
I hope this helps.