Our heart is to reach the nations with the Gospel and to encourage believers in those nations to not grow weary! 

"And the gospel must first be preached to all nations." -Mark 13:10
And I heard the voice of the Lord saying, “Whom shall I send, and who will go for us?” Then I said, “Here am I! Send me.” -Isaiah 6:8
He says, "Be still, and know that I am God; I will be exalted among the nations, I will be exalted in the earth." -Psalm 46:10
 
How then will they call on him in whom they have not believed? And how are they to believe in him of whom they have never heard? And how are they to hear without someone preaching? And how are they to preach unless they are sent? As it is written, “How beautiful are the feet of those who preach the good news!”  -Romans 10:14-15