Theology is simply the study of God, who He is, and how He works.  Recently Providence taught a Foundations - Theology 101 class and the purpose was to lay out the basics of the Christian Faith. Wayne Grudem's Systematic Theology was a text and the notes from each session and much of the audio is posted below.

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Intro to Theology
Our need for theology and it’s place in our faith…
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Theology and Bibliology, the study of God & Bible
The existence of God,the character of God, the trinity and the providence of God
*Reading Assignment - Systematic Theology, Grudem pg. 47-72; 141-211; 226-262 or Bible Doctrine, Grudem pg. 33-63; 67-84; 104-123.
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Christology, the study of Jesus
The diety/humanity of Jesus, The work and office of Christ, the Atonement
*Reading Assignment - Systematic Theology, Grudem pg. 529-568; 624-633 or Bible Doctrine. Grudem pg. 229-247.
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Pneumatology, the study of the Holy Spirit
The work of the Holy Spirit and his place in our present spirituality…
*Reading Assignment - Systematic Theology, Grudem pg. 634-653 or Bible Doctrine, Grudem pg. 396-424.
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Anthropology, the study of humanity
The nature of humanity, complimentarianism, “soul” and “spirit” debate
*Reading Assignment - Systematic Theology, Grudem pg. 439-489 or Bible Doctrine, Grudem pg. 187-209.
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Harmatology, the study of sin
What is sin? Are we sinful from birth? How does our duel nature work?
*Reading Assignment - Systematic Theology, Grudem pg. 490-514 or Bible Doctrine, Grudem pg. 210-226.
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Soteriology, the study of salvation
How is man saved?  How does grace work practically?
*Reading Assignment - Systematic Theology, Grudem pg. 669-691; 709-721 or Bible Doctrine, Grudem 281-294; 307-325.
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Angleology, the study of angels, demons and Satan
What does it mean to live in a spiritual realm? Who is Satan and what can he do?
*Reading Assignment - Systematic Theology, Grudem pg. 397-438, or Bible Doctrine Grudem pg. 168-183.
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Eschatology, the study of the end times
Our need for theology and it’s place in our faith…
ɉ۬*Reading Assignment - Systematic Theology, Grudem pg. 1091-1157 or Bible Doctrine, Grudem pg. 427-437.
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