God gives man eternal life through faith in Jesus Christ, and because of this, 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 keeping power of God that gives this security.
John 10:29 • II Timothy 1:12 • Hebrews 7:25; 10:10-14 • I Peter 1:3-5