“Paul, a servant of God, and an apostle of Jesus Christ, according to the faith of God’s elect, and the acknowledging of the truth which is after godliness; In hope of eternal life, which God, that cannot lie, promised before the world began; But hath in due times manifested his word through preaching, which is committed unto me according to the commandment of God our Saviour” (Titus 1:1-3).
How does Paul’s special revelation add to our understanding of eternal life?
Eternal life is not simply living forever, as non-Christians will be perpetually conscious in Hell and the Lake of Fire (Matthew 25:41; 2 Thessalonians 1:6-9; Revelation 14:9-11. The Lord Jesus Christ defined eternal life in John 17:3: “And this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent.”
As the Bible describes it, eternal life is intimate fellowship with Father God and His Son Jesus Christ. Our communion with Father God depends on Christ as Mediator: “Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me” (John 14:6). “For there is one God, and one mediator between God and men, the man Christ Jesus; Who gave himself a ransom for all, to be testified in due time. Whereunto I am ordained a preacher, and an apostle, (I speak the truth in Christ, and lie not; ) a teacher of the Gentiles in faith and verity” (1 Timothy 2:5-7).
With the Apostle Paul’s ministry, God revealed a special type of eternal life. It involved a new species of mankind—the Church the Body of Christ (see Ephesians 2:1-22). They would indeed enjoy God’s life, but not in an earthly kingdom (as with ministries previous to Paul). Instead, they would be the expression of God’s life in the heavenly places. When we trust Jesus Christ as our personal Saviour, we immediately obtain eternal life. However, sin prevents us from fully experiencing God’s life (for now).
“Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ; Who gave himself for us, that he might redeem us from all iniquity, and purify unto himself a peculiar people, zealous of good works” (Titus 2:13,14). source