ACTS is written by Paul using the format of writing letter to his friend telling a story about Jesus. Apostle is kind someone called for a special job, sometimes called evangel. disciple, follwer, pastor, ministry can be apostle. reminde them what Jesus had promised, Jesus will ask the Father to let Holy Spirit back to earth to be with the believers. the trinity of God: The Father, the Son, and the Holy Spirit, usually the Father is the creator, the Son is Jesus, and the Holy Spirit is always with the believer. different denominations/organizations/branches involved, such as Baptist, Alliance. The preaching is usually extend from home to around and then to far away even foreign countries, the relationship similar to: first Jerusalem, then in Judea area, then in Samaria. In such a situation, it is very challenge/tough. If you can make a difference in your life, you actually set up a good example to others, which will make it easier to persuade/affect others to make a decision to become a believer. Give then enough time, do not push them. do what you supposed to do in the right time is the principle.