'Throne of God' in the Bible

For this cause, are they before the throne of God, and are rendering divine service unto him, day and night, in his sanctuary; and he that sitteth upon the throne shall spread his tent over them;

And he pointed out to me a river of water of life, bright as crystal, issuing forth out of the throne of God and of the Lamb,

And, no curse, shall there be, any more; and, the throne of God and of the Lamb, shall be, therein, - and his servants will render divine service unto him,