The Great Commission
Matthew 28:19-20
"Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit: Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen."
Mark 16:15
And he said unto them, "Go ye into all the world, and preach the gospel to every creature."
Luke 24:46-48
And said unto them, "Thus it is written, and thus it behoved Christ to suffer, and to rise from the dead the third day: And that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem. And ye are witnesses of these things."
John 20:21
Then said Jesus to them again, "Peace be unto you: as my Father hath sent me, even so send I you."
Acts 1:8
"But ye shall receive power, after that the Holy Spirit is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth."