This passage from George Ladd was recently quoted by David Platt in his excellent sermon on the sovereignty and God and global missions. It concerns Matthew 24:13, in which Jesus says, "And this gospel of the kingdom will be proclaimed throughout the whole world as a testimony to all nations, and then the end will come" (Matthew 24:14 ESV).
This statement has often raised questions like "Does this mean Jesus can't come back yet?" "How will we know when all nations have been reached?" "
Can we know?" etc. Without dismissing them, Ladd cuts through those questions in this statement:
God alone knows the definition of
terms. I cannot precisely define who all the nations are. Only God knows the
exact meaning to evangelize. He alone will know when that goal is fulfilled.
But I do not need to know. I know only one thing: Christ has not yet returned;
therefore, the task is not yet done. When it is done, Christ will come. Our
responsibility is not to insist on defining the terms; our responsibility is to
complete the task. So long as Christ does not return, our work is undone. Let
us get busy and complete our mission.
-George Eldon Ladd, The Gospel of the Kingdom (1959 A.D.)