How do we know that God's adoption of us is eternal?

The doctrine of adoption is grounded in the eternal purpose of God. Ephesians 1:4-5 reveals that He has chosen us in Him before the foundation of the world for adoption as His children. This indicates that our adoption was not a reaction to our faith or actions; rather, it was part of God's sovereign plan from eternity. The passage emphasizes that our standing as sons is rooted in His choice and love, which ensures that it is everlasting. This predestined adoption affirms that we are not merely called sons of God in a transient sense but that this identity is secured by God's decree, making it a permanent and unchanging reality.