---
title: "Question 40: Why was it requisite that the Mediator should be God and man in one person? | Westminster Larger Catechism"
description: "Westminster Larger Catechism, question 40: Why was it requisite that the Mediator should be God and man in one person? It was requisite that the Mediator, who was to reconcile God and man, should himself be both God and man, and this in one per"
canonical: "https://ctkrp.org/larger-catechism/question-40-why-was-it-requisite-that-the-mediator-should-be/"
source: "https://ctkrp.org/assets/rpcna-constitution-2026.pdf#page=121"
---

# Question 40: Why was it requisite that the Mediator should be God and man in one person? | Westminster Larger Catechism

It was requisite that the Mediator, who was to reconcile God and man, should himself be both God and man, and this in one person, that the proper works of each nature might be accepted of God for us, and relied on by us, as the works of the whole person.

Scripture proofs: Matt. 1:21, 23; Matt. 3:17; Heb. 9:14; 1 Pet. 2:6.

Original source: [2026 RPCNA Constitution](https://ctkrp.org/assets/rpcna-constitution-2026.pdf#page=121)

## Related reading

- [Salvation by grace through faith](https://ctkrp.org/learn/topics/salvation-by-grace/)
- [Westminster Confession of Faith · Chapter 8: Of Christ the Mediator](https://ctkrp.org/confession/chapter-8-christ-the-mediator/)
- [Westminster Shorter Catechism · Question 21: Who is the Redeemer of God’s elect?](https://ctkrp.org/shorter-catechism/question-21-who-is-the-redeemer-of-gods-elect/)
- [Westminster Larger Catechism · Question 36: Who is the Mediator of the covenant of grace?](https://ctkrp.org/larger-catechism/question-36-who-is-the-mediator-of-the-covenant-of-grace/)
- [Find teaching on christ](https://ctkrp.org/sermons/?q=Christ)
- [Question 39](https://ctkrp.org/larger-catechism/question-39-why-was-it-requisite-that-the-mediator-should-be/)
- [Question 41](https://ctkrp.org/larger-catechism/question-41-why-was-our-mediator-called-jesus/)

Canonical page: https://ctkrp.org/larger-catechism/question-40-why-was-it-requisite-that-the-mediator-should-be/