God spoke all things in to being as we read in Genesis chapter 1:
The First Day: Light
3And God said, Let there be light: and there was light. 4And God saw the light, that it was good: and God divided the light from the darkness. 5And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.
Just as God “spoke”, and continues to “speak” all things in to being the Word preserves the existence of that same being by the speech of his power:
Hebrews 1 v 3 Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high; 4 Being made so much better than the angels, as he hath by inheritance obtained a more excellent name than they.
The writer of the Hebrews states that this power is an attribute of the Son himself. The text does not say that this power to sustain the existence of all things belongs to God but expressly states that it is the possession of the Son himself, “his power”.
This shows that those religions, like Unitarianism and Islam, that try to rob the Son of his power and deny it to him, are false religions and should be avoided like the plague.