A lot has changed in 2000 years, since Jesus and His followers first started the church, but regarding the command to spread the Good News:

“And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth. Go ye therefore, and teach all nations, baptizing them in the name of the Father, and the Son, and the Holy Ghost: Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you always, even unto the end of the world. Amen.” (Matthew 28:18-20)

...the words are still the same and the Orders Remained Unchanged.