Psalms 50:2 - Matthew Poole's English Annotations on the Holy Bible

The place where he was supposed to reside, and where he would now sit in judgment; or from whence he would come to a more public and conspicuous place, where all the world might see and hear the transactions. The perfection of beauty; the most beautiful and amiable place of the whole world, because of the presence, and worship, and blessing of God, which was there, and there only. God hath shined, i.e. hath appeared or manifested himself in a glorious manner, as judges do when they come to the judgment-seat.