How do we know that God promised eternal life?

The promise of eternal life is foundational to God's plan, which He established before the beginning of time. In Titus 1:2, it is affirmed that God, who cannot lie, promised eternal life to His elect. This means that the assurance of eternal life is not bound by time or circumstance but is rooted in God's unchanging character. This promise is guaranteed to those who possess the faith of God's elect, which is not merely acknowledgment of truth but a living trust in Jesus Christ for salvation.