A common habit used among some evangelical Christians is to describe the place of God’s throne is “the throne room”. However, the Bible never uses this expression to describe God’s throne. It is entirely made up by people and not scriptural at all.
Thus saith the Lord, The heaven is my throne, and the earth is my footstool: where is the house that ye build unto me? and where is the place of my rest? ~ Isaiah 66:1
Howbeit the most High dwelleth not in temples made with hands; as saith the prophet, Heaven is my throne, and earth is my footstool: what house will ye build me? saith the Lord: or what is the place of my rest? Hath not my hand made all these things? ~Acts 7:48-50
There are many scriptures in the Bible which speak of God’s throne, and never is his throne confined to a “room”, so please stop it with this vernacular if you have the habit of referring to the place of God’s enthronement as “the throne room.” God is enthroned in majesty in the heavens, not confined to some room in the heavens.
Let your beliefs about God and Christ, who is seated at God’s right hand be aligned with the revelation given to us in the scriptures.