We believe that Jesus Christ, according to his divine nature, is the only begotten Son of God, begotten from eternity, not made nor created (for then he should be a creature), but co-essential and co-eternal with the Father, the express image of his person, and the brightness of his glory, equal unto him in all things. He is the Son of God, not only from the time that he assumed our nature, but from all eternity, as these testimonies, when compared together, teach us. Moses saith, that God created the world; and John saith, that all things were made by that Word, which he calleth God. And the apostle saith, that God make the worlds by his Son; likewise, that God created all things by Jesus Christ. Therefore it must needs follow, that he, who is called God, the Word, the Son, and Jesus Christ, did exist at that time, when all things were created by him. Therefore the prophet Micah saith, His goings forth have been from of old, from everlasting. And the apostle: He hath neither beginning of days, nor end of life. He therefore is that true, eternal, and almighty God, whom we invoke, worship and serve.
Why was it necessary for Christ to be divine?
The Heidelberg Catechism states:
Question 17. Why must he in one person be also very God?
Answer. That he might, by the power of his Godhead sustain in his human nature, the burden of God’s wrath; and might obtain for, and restore to us, righteousness and life.
The Westminister Larger Catechism likewise states:
Question 38: Why was it requisite that the Mediator should be God?
Answer: It was requisite that the Mediator should be God, that he might sustain and keep the human nature from sinking under the infinite wrath of God, and the power of death; give worth and efficacy to his sufferings, obedience, and intercession; and to satisfy God’s justice, procure his favor, purchase a peculiar people, give his Spirit to them, conquer all their enemies, and bring them to everlasting salvation.
“Now therefore, O kings, show discernment;
Take warning, O judges of the earth.
Worship the Lord with reverence
And rejoice with trembling.
Do homage to the Son, that He not become angry, and you perish in the way,
For His wrath may soon be kindled.
How blessed are all who take refuge in Him!” Psalm 2:10-12.
“Then I looked, and I heard the voice of many angels around the throne and the living creatures and the elders; and the number of them was myriads of myriads, and thousands of thousands, saying with a loud voice,
“Worthy is the Lamb that was slain to receive power and riches and wisdom and might and honor and glory and blessing.”
And every created thing which is in heaven and on the earth and under the earth and on the sea, and all things in them, I heard saying,
“To Him who sits on the throne, and to the Lamb, be blessing and honor and glory and dominion forever and ever.” And the four living creatures kept saying, “ Amen.” And the elders fell down and worshiped.” Revelation 5:11-13.