What does the Bible say about the eternal union of the elect with God?

The eternal union of the elect with God is rooted in God's sovereign love, which is made clear in passages such as Ephesians 1:4-5, where it states that believers are chosen in Christ before the foundation of the world. This union encompasses their adoption, justification, and acceptance by God, all of which occur in His eternal purpose. The union is not merely a temporary bond but an everlasting connection that highlights the inseparable nature of God's love for His elect, as expressed in Romans 8:38-39, which says that nothing can separate us from the love of God in Christ Jesus. This eternal union emphasizes God's sovereignty and grace, affirming that the relationship between Christ and the elect began in eternity and manifests fully in their lives through faith.