Jesus Christ is the Son of God. He is co-equal with the Father. Jesus lived a sinless human life and offered Himself as the perfect sacrifice for the sins of all men by dying on a cross. He arose from the dead after three days to demonstrate His power over sin and death. He ascended to heaven and will return again to reign as King of Kings and Lord of Lords.
The Holy Spirit is equal with the Father and the Son as God. He is present in the world to make men aware of their need for Jesus Christ. He also lives in every believer from the moment of salvation. He provides the Christian with power for living, understanding of spiritual truth, and guidance in doing what is right. The Christian seeks to live under His control daily.
Salvation is God's gift to you if you'll accept it. We can never make up for our sin with self-improvement or good works. It is only by trusting in Jesus Christ as God's offer of forgiveness that you can be saved from sin's penalty. Eternal life begins the moment you receive Jesus Christ into your life by faith.
Because God gives man eternal life through Jesus Christ, the believer is secure in that salvation for eternity. Salvation is maintained by the grace and power of God, not by the self-effort of the Christian. It is the grace and eternal power of God that gives this security.