We know we will be changed after death because of God's promise and purpose, which is affirmed in Scripture.
Our assurance that we will be changed after death lies in the sovereignty and faithfulness of God, as revealed in Scripture. The Apostle Paul writes, 'For whom he did foreknow, them he also did predestinate to be conformed to the image of his Son' (Romans 8:29), indicating that God's eternal purpose includes transforming believers into the likeness of Christ. This transformation is not optional but necessary, as Paul emphasizes the phrase 'must' in 1 Corinthians 15:53, affirming that our corruptible bodies must put on incorruption. The certainty of this change is rooted in the resurrection of Christ, which serves as the first fruit of those who have died, providing a definitive promise that all believers will follow suit in their transformation, as seen in 1 Corinthians 15:20.
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