Because God gives eternal life through Jesus Christ, believers are secure in their salvation for eternity. Salvation is maintained by the grace and power of God, not by a Christian’s self-effort. It is the grace and eternal power of God that gives this security. We are assured of our salvation based on the character of God who can never lie.
Through confession of sin and repentance, a Christian continues to grow into the likeness of Jesus Christ. A Christian never uses the forgiveness of God as an excuse to sin. A person continuing in sin may have professed Christ without truly possessing Christ. The fruit of repentance is a changed life.