The disciples wanted to tell the whole world that because Jesus lived, died and rose again everybody everywhere can now become close friends with God.
Some of the disciples started travelling to different countries to tell people about Jesus. Others, like John, wrote letters. People began to take John’s letters around the world. Today John’s letters can be read in hundreds of different languages all around the world.
The Apostle Paul travelled from city to city telling people the good news about Jesus. Over and over again he explained that , with God’s love and forgiveness, and the powerful help of the Holy Spirit, Christians everywhere could learn and grow to be more like Jesus; they could learn and grow to live God’s way.