Psalm 99:3 Let them praise thy great and terrible name; For it is holy.
His name is great and terrible. That word terrible is more like our word awesome today! He is great and beyond comprehension. We praise Him because of who He is. He is holy.
There is no mention of what He has done here. It is not praising Him for being good to me or doing things for me. It is praising Him for who He is. He is God. He is above all. He is my maker, my creator. He is my Savior and Judge. He is all. He is God. He is holy, without sin.
He is right and good. He is and His name tells us who He is.