Whatever is built independently is very difficult to destroy for it is built on oneself. What is built upon another’s words requires trust in the goodness of the other, a sort of faith that only can be offered to Jesus Christ. It is illogical to trust another so deeply that you may build upon his words, for if you could discern that he is good, you wouldn’t need him. Discernment of character is the highest form of discernment. If one cannot discern then the faith required is too great, making it not only illogical but irreverent towards Christ.