For thou [art] great, and doest wondrous things: thou [art] God alone.
Ver. 10. For thou art great] Great is the Lord without quantity, good without quality, everlasting without time, omnipresent without place, containing all things without extent; within all things, and contained of nothing; without all things, and sustained of nothing, &c. Now, the least glimpse of this knowledge is worth all the gleams of human wisdom.
And doest wondrous things] The schools have laid down a threefold way of knowing God: first, negation of imperfections; secondly, affirmation of perfections; thirdly, causation of great works.