“If we believe in Jesus as our Savior, why do we have to die?” This question came from the tender heart of my five-year-old near the end of family devotions one evening. I gave it my best try, pointing to the wages of sin as death (Rom. 6:23). But my son wasn’t the first to ask this question, nor was I the first to answer. As I dug deeper, I realized I should have said more. Over 450 years ago, the German theologian Zacharias Ursinus sought to provide a nuanced and more hopeful response to this question in the Heidelberg Catechism. Lord’s Day 16, Q&A 42 says, “Q: Since Christ has died for us, why do we still have to die? A: Our death does not pay the debt of our sins. Rather, it puts an end to our sinning and is our entrance into eternal life.”
The Heidelberg Catechism on Death for the Christian
The death of the Christian isn’t an ultimately condemning death; it’s a death that leads to life. In his commentary on the Heidelberg Catechism, Ursinus provides four reasons why the Christian still dies: 1. to admonish our remaining sin, 2. to admonish the evilness of sin itself, 3. to abolish our remaining sin, and 4. to provide a path to eternal life.
We’re often inclined to think about the necessity of death exclusively in negative terms, but the catechism provides a helpful corrective to this response on death for the Christian. In what comes out to be a radical, even triumphant reversal in the life of the Christian, our death doesn’t mean we’re under the wrath of God, but it’s the means by which we experience eternal life with Christ. For the one who is found in the Lord Jesus, our natural enemy (death) is used by God to complete his purpose of conforming us to the image of the Son, an image that’s sinless, glorious, and eternal.
Scripture on the Christian’s Destiny
The Heidelberg Catechism, seeking to provide biblical support for Q&A 42, cites 1 Thessalonians 5:9–10, which says, “For God has not destined us for wrath, but to obtain salvation through our Lord Jesus Christ, who died for us.” The apostle Paul goes on in this letter to exhort the Thessalonians—a people already known for their faith, hope, and love—to continue their ministry of encouragement and edification. This means that the hope we have, even in the face of death, should motivate our way of living today. Knowing that the Lord will use death to end our battle with sin encourages us to live in holiness and gratitude, as those who are a part of the new creation (2 Cor. 5:17). The Holy Spirit empowers us for this high calling, by God’s grace.
For my son, and for any who wonder at the inevitability of death, we don’t need to speak exclusively about our death as a response to our sin. Christ died for our sins, and thus our death now means the end of our sin. This answer—pointing to our hope in the gospel—provides the comfort that we should have in death, as well as the encouragement that we should cling to in life.
 Zacharias Ursinus, The Commentary of Zacharias Ursinus on the Heidelberg Catechism (Elm Street Print Co., 1888), accessed April 2, 2022, Logos Bible Software.