Westminster Larger Catechism · 1647

Q40. 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 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.
Answer · Westminster Larger Catechism

Scripture proofs

  1. [1]
    Matthew 1:21

    And she shall bring forth a son, and thou shalt call his name JESUS: for he shall save his people from their sins.

    Matthew 1:23

    Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us.

    Matthew 3:17

    And lo a voice from heaven, saying, This is my beloved Son, in whom I am well pleased.

    Hebrews 9:14

    How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?

  2. [2]
    1 Peter 2:6

    Wherefore also it is contained in the scripture, Behold, I lay in Sion a chief corner stone, elect, precious: and he that believeth on him shall not be confounded.

Proof texts as given in the original; verse text from the King James Version.