Eternal existence is a profound concept woven throughout Scripture, revealing the nature of God and the promise of everlasting life for believers. In John 1:1, we learn that 'In the beginning was the Word, and the Word was with God, and the Word was God,' emphasizing the preexistence of Christ and His divine nature. This eternal existence of Christ is further affirmed in Hebrews 13:8, where it states, 'Jesus Christ is the same yesterday and today and forever,' highlighting His unchanging essence through all time. The Bible also teaches that humanity is invited into this eternal existence through faith in Jesus, as expressed in John 3:16, which proclaims, 'For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life.' Moreover, 1 John 5:11-12 assures us, 'And this is the testimony: God has given us eternal life, and this life is in his Son. Whoever has the Son has life; whoever does not have the Son of God does not have life.' Ultimately, the promise of eternal existence is not merely a future hope but a present reality for those who abide in Christ, as affirmed in Romans 6:23, where we read, 'For the wages of sin is death, but the gift of God is eternal life in Christ Jesus our Lord.' Through these scriptures, we see that eternal existence is a gift of grace, rooted in the character of God and the work of Christ.
John Chrysostom preaches on the eternal existence of the Word, emphasizing the importance of understanding the Son's co-eternity with the Father and His role in creation. He challenges the notion of the Son being younger than the Father, highlighting the Son's infinite life and the fallacy of assign