Above all, it should be perfectly kind and candid. In discussion there is no place for hatred, no opportunity for slander. A personality is always out of place. An angry man can neither reason himself, nor perceive the reason of what another says. The orthodox world has always dealt in personalities.
Every minister can answer the argument of an opponent by attacking the character of the opponent.
This example should never be followed by a Liberal man. Nobody can be bad enough to prove that the Bible is uninspired, and nobody can be good enough to prove that it is the word of God. These facts have no relation. They neither stand nor fall together. Nothing should be asserted that is not known.