The issue is not whether we have sufficient people or resources. The issue is where we choose to invest them. Will the Church continue to invest the vast majority of it’s resources inward? Or will we choose to obey, direct our resources and people toward God’s purposes for all nations?
What is a People Group?
When God gives you a task, it is infinitely important that you know the definition of the task. God has promised to reach all the nations of the earth and commissioned us as His ambassadors in that work. In order to be good stewards of this mission we must have a firm grip on the extent of the task, which, in the work of world missions, brings us to look closely at the terms that the Bible uses for the task. Namely, what does it mean to reach the nations?
The 10/40 Window
If the command given by Jesus is to make disciples of all nations (or ethnic groups), then common sense would tell us our job is to find those nations (ethnic groups) that have not been discipled (taught to be followers of Christ). The vast majority of these unreached people live in an area of the world nicknamed the "10/40 window."