A lot of people believe in God but not in His Son, Jesus Christ. They believe that Jesus was a teacher, prophet or just a man but not God in man form. Salvation through Jesus Christ is what separates us , it allows us to have eternal life. We have not received salvation because of our works, no. We have salvation because it is a gift from God. Jesus is a gift from God and those who accept Him will have eternal life. We are commissioned to continue to speak of the goodness of Jesus to the world but are we doing that? It is easy to get distracted by everything going on in our lives but we can't forget to introduce someone to Jesus. In order to received the fullness of God, we first have to be adopted through Christ's sacrifice on the cross into His kingdom. If you are asking I don't know what to say to someone who wants to know Christ, send them this prayer and ask the Holy Spirit to guide you as you read Romans 10:9-10. Scripture reference :John 3:3-5John 3:14-18Romans 10:9-10Ephesians 2:8-10