He is The Lord of the Worlds

Say (O beloved Prophet): surely, my regular prayer and my sacrifice and my living and my dying are (all) for Allah, the Lord of the worlds. (6:162)

And certainly We sent Musa (Moses) with Our Signs to Firawn (Pharaoh) and his chiefs, and he said: Verily, I am a (Prophetic) Messenger of the Lord of the worlds. (43:46)

Their prayer therein shall be: Glory be to you, O Allah! and their greeting therein shall be: Peace! and the conclusion of their prayer shall be: all Praise be to Allah, the Lord of the worlds. (10:10)

And you shall see angels surrounding the Throne (of Allah) on all sides glorifying the praise of their Lord; and true judgement shall be given between them, and it shall be said: All praise is due to Allah, the Lord of the worlds. (39:75)