This document discusses key topics in the theology of Christ, including his divine and human natures, the hypostatic union of those natures in one person, his ability or inability to sin (peccability), and several historical Christological heresies. It provides biblical support for Christ's deity and humanity, examines how his two natures are united in one person without confusion, and explores whether Christ could have sinned given his divine nature. The document also briefly outlines five Christological heresies rejected by orthodox Christianity.

1. Topics in Systematic Theology
Christology

2. Christology
1. Divine Nature
2. Human Nature
3. The Hypostatic Union
4. Peccability
5. Christological Heresies

3. 1.Divine Nature
1. Biblical texts supporting deity: Jn 1:1; 20:28; Rom 9:5; Titus 2:13; Heb 1:8; 2 Peter 1:1
2. He had divine titles attributed to Him:
a. Lord
b. Son of Man
c. Son of God
d. Messiah
e. “I am” saying
f. Alpha and Omega
3. Performs divine activities
Jesus Christ has a hand in creation (Jn 1:3; Col 1:16), Heals the sick (Mk 1:32-34; Acts
3:6), forgives sin (Mk 2:1-12; Lk 24:47; acts 5:31), Dispenses the Spirit (Matt 3:11; Ascts
2:17, 33), Raises the dead (Lk 7:11-17; Jn 5:21; 6:40)

4. 2. Human Nature
1. Biblical texts supporting His humanity: Matt 4:4; John 8:40
2. His titles:
a. Son of David
b. Genealogical records in Matt 1 and Luke 3
c. The Son of Man
d. The Last (or second) Adam: 1 Cor 15:45; Rom 5
3. He had a real human body:
a. He had a human birth (Lk 2:7)
b. He grew as all children grow (Lk 2:40, 52)
4. He was subject to human finitude
a. He could become weary, hungry, and thirsty.
b. He could suffer physically and undergo death.

5. 3. The Hypostatic Union
1. The two natures do not address each other.
2. Jesus (as well as the biblical writers) always refers to Himself as a
singular person (which He is, one person).
3. When speaking of this one person, Jesus Christ, Scripture does not
explicitly distinguish between His two natures.

6. 3. The Hypostatic Union
1. The union of the two natures in the one person
a. Two intact natures: an “unconfused, unchangeable” union of natures
b. One person: a personal, “Indivisible, inseparable” union
Summary Definition of the Person of Christ (from EDT, 540)
“In the incarnation of the Son of God, a human nature was inseparably united
forever with the divine nature in the one person of Jesus Christ, yet with the
two natures remaining distinct, whole, and unchanged, without mixture or
confusion so that the one person, Jesus Christ, is truly God and truly man.”

7. 3. The Hypostatic Union
1. The Necessity of the Hypostatic Union:
a. Christ must be divine to be a worthy sacrifice for our sins.
b. Christ must be human to be a representative of humanity.

8. 4. Peccability
1. Could Christ have sinned?
a. The Problem: Christ, as a member of the Trinity,
cannot sin.
b. But then how could he be tempted?
c. What do we make of Hebrew 4:15?
2. Christ never did sin: John 8:29, 46; 14:30-31; 15:10; 2
Cor 5:21
3. Christ really was tempted: Matt 4:1-11; Hebrews 4:15

9. 4. Peccability
1. A Solution:
We must follow the teaching of scripture on this issue. It states
clearly that Christ really was tempted in every way, and this
temptation was real. Yet at the same time, it would be impossible for
Christ to sin because of His divine nature. We might think of it as a
backup to His human nature. Even if this is so, the way the scriptures
speak is that Christ did not need His divine nature as a “backup” but
resisted temptation like we can as well. That is what Hebrews is
getting at; He resisted temptation to show us that we can as well. He
couldn’t show us how to beat temptation if He was relying on His
divine nature.

10. 5. Christological Heresies
1. Arianism: Denied full divinity – characterized by the phrase
“There was a time when he [Christ] was not.”
2. Socinianism: Jesus was a good man that God exalted to a
delegated divinity
3. Kenoticism: Turn to Phil 2:5-8
4. Docetism: Christ only appeared to be human
5. Apollinarianism: Tricotemistic; Jesus had human body and soul,
but divine spirit. He was not fully human.