Thy righteousness also, O God, is very high, who hast done great things: O God, who is like unto thee!
Thy righteousness also, O God, is very high - literally, 'is even to the height' (Psalms 36:5; Psalms 57:5; Psalms 57:10).
O God, who is like unto thee! Exodus 15:11 is the fundamental passage. Compare David's own words, 2 Samuel 7:22 - an undesigned coincidence.