Which of the following is NOT source material Will Arbery used to write “Quiet Fighter”?

Sun Tzu's book "The art of war"

Jesus Christ, the son of God, full filled God's eternal plan when he was sent  down to Earth, by the father in heaven, in a human body, as the sacrifice. He did this to pay for the sins of every human being (past, present and future) as long as they would accept him into their hearts as their lord and savior. Christ was sent to earth with a purpose. A very divine purpose, that he in fact did full fill. Which was God's eternal plan.