What do both the dead in Christ and the saints alive at Christ's return receive?

The correct answer highlights a core belief in Christian eschatology, specifically concerning the resurrection and transformation that believers will experience at the return of Christ. Both the dead in Christ—those who have passed away believing in Christ—and the saints who are alive when Christ returns will receive a transformation of their bodies. This is understood to be a physical resurrection or a change from mortal to immortal, as described in scriptures such as 1 Corinthians 15:51-52.

This transformation signifies that the corruptible will become incorruptible, and the mortal will take on immortality. It illustrates the hope believers have in the ultimate redemption and glorification of their physical bodies, which aligns with the promise of eternal life. Additionally, it emphasizes the unity of all believers—whether deceased or living—participating in this glorious event. This theological understanding is foundational in Christian teachings regarding the end times and the nature of eternal life.