That which the Lord spoke to His servant Moses, “I am that I am,” [Ex 3:14] this we shall contemplate when we shall live in eternity. For thus the Lord speaks, “This is life eternal, that they might know thee the only true God. [John 17:3] This contemplation is promised to us as the end of all action, and the eternal perfection of our joys, of which John speaks, “We shall see him as he is.” [1 John 3:2]
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: de Trin. i, 8