Book 1 - Knowledge of God the Creator
Chapter 13 - One essence of God, which contains Three Persons
Sections 7-13 – The eternal deity of the Son
Section 8 – The eternity of the Word
False teachers undermine Christ’s deity by saying He was begotten at the beginning of creation.
The Word has always been begotten, and does not change – James 1:17
Jesus was in glory before the world was – John 17:5
Section 9 – The deity of Christ in the Old Testament
Psalm 45:6 – Scripture does not give an eternal throne to any creature, yet gives it to the King (Messiah).
Isaiah 9:6 calls Him everlasting Father
Jeremiah 23:6 gives the Messiah Yahweh’s name.
Section 10 - the "Angel of the Eternal God"
The Angel who appears to Manoah's wife, Samson's mother (Judges 6:11ff; 7:5, 9) was Yahweh Himself. This was God's Word, fulfilling the role of Mediator as a foretaste in the OT. They saw God face to face, as did Jacob (Gen 32:30).
Christ was the rock that led Israel in the wilderness (1 Cor 10:4).
Zechariah 2:3, 9 is another example of the angel as GodHimself. And Isa 25:9.
In Malachi 3:1, the Messenger of the covenant comes to HIS temple. This is Jesus.
Section 11 - Divinity of Christ in the NT: witness of the Apostles
Isaiah 8:14 says Yahweh will be a stone of stumbling;
Paul declares this fulfilled in Christ (Rom 9:32).
Christ has a judgment seat (Rom 14:10).
Every knee will bow to Him (Rom 14:11; Isa 45:23).
He ascended on high (Ps 68:18; Eph 4:8).
Isaiah saw Christ's glory (Isa 6; John 12:41).
The Psalmist worships the Son (Ps 102:25) according to Heb 1:10:
"You, Yahweh, in the beginning laid the foundation of the earth."
Same with Ps 97:7, in Heb 1:6: "adore Him, all you His angels."
John 1:1, 14; 2 Cor 5:10; Rom 9:51 Tim 3:16; Phil 2:6-7.
1 John 5:20 is especially clear.
Acts 20:28: "God has purchased the church by His blood."
John 20:28: "my Lord and my God."
Section 12 - Divinity of Christ shown in His works
Jesus works with His Father (John 5:17), calls God His Father (John 5:18), and governs the universe (Heb 1:3).
He forgave sins (Matt 9:6) as only God can (Isa 43:25).
He could read men's thoughts (Matt 9:4; John 2:25), as only God can.