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

The truth of God's adoption is rooted in Scripture, which teaches that believers are predestined for adoption according to His eternal plan. Ephesians 1:4-5 states that God chose us in Christ before the foundation of the world, highlighting that our adoption is not a response to our actions but a manifestation of God's sovereign will. This unconditional choice assures us of our security in His family, and it is reinforced throughout the New Testament as God continues to call sinners to Himself through the Gospel.