2 Peter 3:9
The Lord is not slow in keeping his promise, as some understand slowness. Instead he is patient with you, not wanting anyone to perish, but everyone to come to repentance.
We live in the circle below (click to enlarge).
Our job is not to convert anyone.
However, the red on the map is a BUNCH of small red dots,
Each representing a tribe
(or, a more technical term, "people/language group")
Who have not, despite thousands of years of work and witness,
Had the opportunity to hear about who Jesus is,
And what he wants to do in their life.
We could spend our entire life praying and sharing about Jesus one person at a time,
But simple birth rate and death rate would make our task futile.
Addition Will Not Work.
Multiplication Must Happen.
So we teach our fellow workers to Pray,
We teach them To Accurately Handle the Word,
And we give them Reproducible Tools which they can pass on to others.
And the things you have heard me say in the presence of many witnesses entrust to reliable people who will also be qualified to teach others.