What does eternal life mean in the context of salvation?

Eternal life is not merely endless existence; it signifies a quality of life that begins at the moment of salvation and continues forever in fellowship with God. When God fills an empty sinner with Christ, that individual is granted eternal life—indicating that they will never spiritually die or face condemnation. The sacrifice of Christ is sufficient, meaning it does not need repeating; it fully addresses and pays the debt of sin once and for all. Those who are genuinely saved are kept by God's power and will experience everlasting life with Him.