Jesus tells us in Act 1:8:
"But you shall recieve power when the Holy Spirit has come upon you; and you shall be my witnesses both in Jerusalem, and in all Judea and Samaria, and even to the remotest part of the earth."
Furthermore, Jesus gives us The Great Commission in Matthew 28:16-20, and the Bible instructs Christians to go and proclaim the Gospel to all nations. We firmly believe in the promise of crowns for Christians.