It is to be remembered that God, like the soul, does not know what he is. The divine essence is infinite and cannot be defined. If God knows of himself what he is, he defines himself. . . . This is not to teach that God does not know himself, but only that he does not know what he is; for he is not a ‘what’. Where there is no defined substance, there can be no quantity or quality.
– O’Meara on Eriugena
It tells you two things:
1 – that’s why you want John O’Meara to write your guides to Plotinus and Eriugena. It is hard to do as well as he does with these exalted metaphysicians.
2 – that is the quality of divine knowledge, since God is wholly other.