Why should Christians believe in the perseverance of the saints?

The perseverance of the saints assures believers that once they are genuinely saved, they will continue in faith and cannot ultimately lose their salvation. This doctrine is grounded in biblical promises such as John 10:28-29, where Jesus assures that none can snatch His sheep from His hand. The faithful believer's assurance is linked to God's sovereign grace, which enables them to endure trials and perseveres in faith. This doctrine encourages believers to trust in God's faithfulness to keep them, assuring them of their eternal security in Christ.