And being assembled together with them, He commanded them not to depart from Jerusalem, but to wait for the Promise of the Father, “Which,” He said, “you have heard from Me.” —Acts 1:4
The task of the church is twofold: to spread Christianity throughout the world and to make sure that the Christianity she spreads is the pure New Testament kind….
Christianity will always reproduce itself after its kind. A worldly- minded, unspiritual church, when she crosses the ocean to give her witness to peoples of other tongues and other cultures, is sure to bring forth on other shores a Christianity much like her own….
The popular notion that the first obligation of the church is to spread the gospel to the uttermost parts of the earth is false. Her first obligation is to be spiritually worthy to spread it. Our Lord said “Go ye,” but He also said, “Tarry ye,” and the tarrying had to come before the going. Had the disciples gone forth as missionaries before the day of Pentecost it would have been an overwhelming spiritual disaster, for they could have done no more than make converts after their likeness, and this would have altered for the worse the whole history of the Western world and had consequences throughout the ages to come.