Originally Posted by
allodial
If you fail to believe what you know or in what you are told then what good is it? If someone truthfully were to say that there is a blazing comet falling from the sky headed for your house and you laugh and mock them. All the knowing would do you little good (i.e. in that case the equation might be knowing + doubt + zero works/action resulting in death, loss or injury). If you were to look through a skylight and see this ball of fire drawing closer and closer, but you simply shrugged and laughed "Its an illusion. Its not real." All the knowing still would not save you.
Without faith in the subject matter, knowledge might be like dust (for a scientist, a gardener, a pilot, an engineer, a baker, etc.). In the Garden of Eden story, what was the serpent destined to feast on? Who was the serpent destined to be at enmity with? The seed of the woman (the "Isaacs").
Adam and Even *knew* about the consequences of the Tree of Knowledge of Good and Evil. They KNEW. Did knowing save them from the consequences?
Perhaps serpent venom in the eyes or perhaps in the mind could cause blindness. Even Jesus in his mercy and compassion left a door open for the Pharisees. It takes humility sometimes to admit to blindness, error, insanity, not being as wise or intelligent as one might like to believe oneself to be--a humility that can be very much worth it in the end.