All who were chosen by God, redeemed by Christ, and given faith by the Spirit are eternally saved. They are kept in faith by the power of Almighty God and, thus, persevere to the end. Therefore, salvation is wholly dependent upon the God who has willed to save those whom He gave to His dear Son. Their salvation can never be lost. The elect are kept by God's power through faith, and nothing can separate them from His love. They have been sealed with the Holy Spirit who has been given as the guarantee of their salvation, and they are thus assured of an eternal inheritance. This doctrine does not maintain that all who profess the Christian faith are certain of heaven. Many who profess belief and then "fall away" do not fall from grace; they were never in grace. True believers fall into various temptations and commit grievous sins, but these sins do not cause them to lose their salvation or separate them from Christ.
Isa 43:1-3; Jer 32:40; Rom 8:35-39; Eph 1:13-14 1 Thess 5:23-24; Jude 24-25