If you were an outstanding gifted evangelist with an international reputation, and if, under God, you could win 1,000 persons for Christ every night of every year, how long would it take you to win the whole world for Christ?
Answer: Ignoring the population explosion over 10,000 years.
But if you are a true disciple of Christ, and if you are able under God to win just one person to Christ each year; and if you could then train that person to win one other person to Christ; and if you could then train that person to win one other person for Christ each year, how long would it take to win the world for Christ?
Answer: just 32 years!
– David Watson, speaking of James Kennedy’s illustration