This is criminal, to head out on a mission to contact any of these uncontacted people groups.
I'd have to pull out the book & my notes, but I'll tell you, Dr. Robert Jeffress discussed on one of his sermons on heaven a month or two ago the idea that everyone on the earth today has an accurate concept of Yahweh God, the Creator of this universe. He said we did not need to worry ourselves about any as-yet uncontacted groups of people as holding back the 2nd Coming of Jesus Christ. It was real interesting, and made sense.
Psalm 121:1-2 I will lift up mine eyes unto the hills, from whence cometh my help. My help cometh from the Lord, which made heaven and earth.
Another one I heard last week. A minister was saying that his congregation will continue using a common cup at communion because, "The cup of Christ cannot be contaminated." Really? I hope this isn't too vulgar for here but would he say the same if the cup was smeared with bird feces instead of an invisible virus. Yeah, the cup can be contaminated.