How does one explain God being outside the universe yet on the throne in heaven without violating divine simplicity? God created the universe. Therefore He transcends the universe. He is outside the universe.
Yet, He has a throne room in heaven:

Revelation 4:2 - Immediately I was in the Spirit; and behold, a throne set in heaven, and One sat on the throne.

I told someone that God is outside the universe, but &quot;part&quot; of Him is in it.
I was told that violates divine simplicity, since God has no parts.
How does one explain God being outside the universe yet on the throne in heaven without violating divine simplicity?
Or is the premise wrong somehow?
There is no throne 'room' in scripture.
There is the concept of a throne given to us for our understanding.
Since God created all things, heavens (plural) and earth, he cannot be 'part' of that universal creation. God is Spirit.
Being Spirit, he is not 'located' anywhere (in three dimensions).

God is Spirit and they that worship him, must worship him in spirit - and in truth. [John 4:24 KJV]

God is manifested, in flesh, in Jesus Christ, I Timothy 3:16 [TR] [KJV] but it is not revealed where (physically) Jesus Christ is now (a cloud received him out of their sight).

And when he had spoken these things, while they beheld, he was taken up; and a cloud received him out of their sight. [Acts 1:9 , KJV]

The further Revelation of Jesus Christ is spiritual - it is not a physical revelation.
The Revelation of Jesus Christ which God gave unto him (see Revelation 1:1) is, quite clearly, conceptual - for the apprehension of faith - and is not to be understood in a physical way.