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BIBLIOLOGY: Doctrine of the Bible; deals systematically with the historical conditioned progress of the self-revelation of God in the Bible.

THEOLOGY PROPER: Is a study within systematic theology; it donates the study of the nature and existence of God; the term proper is used to distinguish the study of God from theology in general; what the Bible says about God only.

COSMOGONY: The study of the origin of the universe.

CHRISTOLOGY: The doctrine of Christ; The theme is well divided into seven positions in which Christ has been set forth by the Bible namely:

1. The pre-incarnate son of God.
2. The incarnate son of God.
3. The efficacious sufferings, death and burial of the son of God.
4. The resurrection of the son of God.
5. The ascension and session of the son of God (Two ascensions of which Christ present in Heaven:-
– a. Immediately after the resurrection when the return of Christ into heaven as first fruits and as priest presenting his blood occurred.
– b. Final departure from the earth; when He showed up His present ministry in Heaven)
6. The second coming and kingdom of the son of God.
7. The conclusion and the mediation of the eternal reign of the son of God.

PNEUMATOLOGY: Doctrine of the Holy Spirit; within the three persons of Godhead, there is one person who is distinctly called “the Holy Spirit” or “the Spirit of God”.

ANGELOLOGY: Doctrine of Angels, Satan and demons; they include:

1. The angelic spheres.
2. The reality of the angels.
3. Relative importance of angels and men.
4. The personality of angels.
5. The creation and mode of existence of the angels.
6. The abode of the angels.
7. The number of angels.
8. The classification of the angels.
9. The ministry of the angels.
10. The progressive discipline of the angels.
11. The angels as spectators.

ANTHROPOLOGY: The study of, or, science of man. *Anthros = man; *Logos = word or discourse. Hence, anthropology is a discourse about man.

HAMARTIOLOGY: Deals with personal sin, transmitted sin nature and imputed sin.

SOTERIOLOGY: Doctrine of salvation; Three tenses of salvation:

1. Moment One believes, he is saved from condemnation of sin (Ephesians 2:8; Titus 3:5)
2. Believer is also being saved from the dominion of sin and is being sanctified and  preserved (Hebrew 7:25)
3. He will be saved from the very presence of sin in heaven forever (Romans 5:9-10).

ECCLESIOLOGY: Translated church or Assembly; means a called-out company; It can be used in a technical sense of the New Testament church; or, it can be used in a non-technical sense or any kind of group; customarily the concept of the church has focused on the universal and the local church.

SACRAMENTOLOGY: First; sacrament is a holy ordinance instituted by Christ in His church, to signify, seal and exhibit unto those that are within the covenant of grace, the benefits of His mediation; to strengthen and increase their faith, and all other graces; to oblige them to obedience; to testify and cherish their love and communion one with another; and to distinguish them from those that are without. Hence, SACRAMENTOLOGY is the study of the biblical sacrament (Holiness), for which there are two of them in the New Testament, baptism and the Lord’s Supper – both of which are covenantal ceremonies.

ESCHATOLOGY: A theological term for the study of the end times.