What does it mean to have eternal life in Jesus?

Eternal life, as described in the Scriptures, is not merely a quantity of life but a quality of life found in a relationship with Jesus Christ. In John 17:3, Jesus defines eternal life as knowing the only true God and Jesus Christ whom He has sent. This relationship transforms believers, ensuring they are not only saved from sin but also empowered to live according to God's will. Moreover, the gift of eternal life is a profound assurance that once secured in Christ, it cannot be lost, as seen in John 10:28-29, affirming that Jesus' grasp on His sheep is eternally secure.