"the gospel of the kingdom will be preached in all the world as a testimony to all nations, and then the end will come" (Matthew 24:14)

I believe most people groups have now been exposed to the gospel, although many have rejected Jesus. If you are a Christian, we have a beautiful opportunity witnessing to immigrants the love of Jesus right here too. If there is a refugee or immigrant or homeless in your community God might want, you to tell them about Jesus. God wants us to reach the entire world with the gospel, that include your neighborhood too!
Matthew 24:14
"The gospel of the kingdom will be preached in all the world as a testimony to all nations, and then the end will come" (Matthew 24:14)