The theme is the theme of humiliation, which is the square root of sin, as opposed to the freedom from humiliation, and love, which is the square root of wonderful.
And yet, you do not throw out some of the great minds of the Church - and people in Church history - and say they have no credibility because they committed a sin or made a mistake.
If a man dreams that he has committed a sin before which the sun hid his face, it is often safe to conjecture that, in sheer forgetfulness, he wore a red tie, or brown boots with evening dress.
There is no arguing with the pretenders to a divine knowledge and to a divine mission. They are possessed with the sin of pride, they have yielded to the perennial temptation.