Clement of Alexandria

It is He who truly shows how we are to know ourselves. It is He who reveals the Father of the universe to whom He wills, and as far as human nature can comprehend. "For no man knoweth the Son but the Father, nor the Father but the Son, and he to whom the Son shall reveal Him." Rightly, then, the apostle says that it was by revelation that he knew the mystery: "As I wrote afore in few words, according as ye are able to understand my knowledge in the mystery of Christ." "According as ye are able," he said, since he knew that some had received milk only, and had not yet received meat, nor even milk simply.