The document discusses how having faith in Christ's forgiveness of sins through his death and resurrection leads to improved well-being. It emphasizes that Christians can be secure in their relationship with God. This security is important to grow in faith and serve others well without lacking confidence in God's acceptance. The document outlines three arguments from scripture for why a Christian's salvation is secure: direct statements about eternal security, Christians' unchanging positions before God, and God causing believers to persevere through life to salvation not by their own efforts alone. This security allows Christians to invest in their relationship with God without being burdened by guilt or worries over their acceptance.