John Gill Commentary 2 Samuel 7:22

"Wherefore thou art great, O Jehovah God: for there is none like thee, neither is there any God besides thee, according to all that we have heard with our ears." — 2 Samuel 7:22 (ASV)

Wherefore you are great, O Lord God
In his name, nature, persons, and perfections, purposes, promises, and works:

for [there is] none like you ;
for his essence and attributes, for his greatness and goodness, for what he is in himself, for what he is to his people, and has done for them:

neither [is there any] God beside you ;
there is but one God, the living and true God, the former and maker of all things; all others are but fictitious and factitious gods, see (1 Samuel 2:2) ;

according to all that we have heard with our ears ;
concerning what he did in the land of Egypt upon the Egyptians, and in the wilderness, in favour of the Israelites, and in the land of Canaan, by driving out the inhabitants before the people of Israel, and in the times of the judges, in raising them up to deliver his people.