blind to my own blindness

John Calvin’s Institutes, begins with this sentence:

“Nearly all the wisdom we possess, that is to say, true and sound wisdom, consists of two parts: the knowledge of God and of ourselves.” What we may need reminding of in our day is not that the knowledge of God is difficult to comprehend and to embrace—that’s more or less obvious—but that the knowledge of ourselves is just as difficult to comprehend and to embrace. Indeed, it may be more difficult, first, because a true knowledge of ourselves assumes a true knowledge of God, and, second, because we tend to think we do know ourselves, when, in fact, the depths or our condition are beyond our comprehension without the help of God (emphasis mine).

Blind. I'm utterly blind without God's grace...