Who spreads the good news of Jesus?

Answer 1

Jesus foretold for our day this work: "This good news of the kingdom will be preached in all the inhabited earth for a witness to all the nations; and then end will come" Jesus also instructed his followers; "Go ...and make disciples of people of all the nations"--Matthew 24:14; 28:19

When Jesus sent out his early disciples, Peter, Andrew, James son of Zebedee and John the brother of James, Philip, Bartholomew, Matthew, Thomas, James the son of Apae'us, Thaddeus, and Simon the Ca-na-nae'an, and also Judas Iscar-i-ot, who later betrayed him. Mark 3:13-19 and Mark 6: 7-13 Jesus gave instruction to go unto the home and from house to house.

Answer 2

Paul was especially called by Christ to go to the Gentiles. The other Apostles were not to go to these but to those of the Lost Tribes of Israel, dispersed throughout the world since their 721-718 BC capture by the Assyrians. Most were in Europe and the Isles:

Matthew 10:5-6New King James Version (NKJV)

Sending Out the Twelve5 These twelve Jesus sent out and commanded them, saying: "Do not go into the way of the Gentiles, and do not enter a city of the Samaritans. 6 But go rather to the lost sheep of the house of Israel.

Answer 3

Christians everywhere spread the Gospel irrespective of whether they have formal training or not.

Answer 4

Paul

Another answer:

Christians everywhere. In fact, they continue to do so.