There are various sources of Christian theology. A major source is Divine revelation which is the disclosure or obviating of an issue via passive or active communication with God. This revelation can come directly from God or through an intermediary such as an Angel. It is likely to be through a human contact or a prophet. Since Christians consider the Bible to be divinely revealed or inspired, and the Bible is basic source of knowledge about God and hence theology which is the study of God, theology can be said to be divinely inspired.
According to the premier Christian theologian or the father of theology St. Thomas Aquinas, there are two types of revelation: General revelation and special revelation. General revelation is the inferences of divine nature and intentions that we can deduce from observations of created order. However there are aspects of divinity that cannot be deduced from observation and have to be specially revealed to man such trinity, resurrection and judgment. Special revelation is through the scripture.
The scripture, a varied collection of books, also called the Bible, is the supreme Christian authority and guidance. The authorship of the Bible is said to be to have been human beings under the influence of the Holy Spirit. Biblical inspiration is a subset of Christian theology concerned with origin of the Bible and what the Bible teaches about it. According to most Christians the writers of the Bible were human beings under the guidance of the Holy Spirit. The Holy Spirit involvement in authorship of the Bible prevented the authors from falling into error while simultaneously enabling them to write messages that were not only appropriate to immediate receipts but would remain timeless: be applicable to those who would come later.
The Bible contains passages that claim divine inspiration of it. These accounts are important in Christian theological arguments and proofs of divine inspiration of the Bible and its authors. There are accounts of directly written revelation such as the Moses receiving the Ten Commandments in Exodus. In addition in the Old Testament the prophets frequently claim immediate and direct inspiration in their writings prefacing them with “Thus says the Lord…” or “the word of the Lord came unto me…” This view is further strengthened in the New Testament as Jesus treats the Old Testament as authoritative and says it cannot be broken. In 2 Peter 1:20-21 Jesus says that “no prophecy of scripture …was ever produced by the will of man, but men spoke from God as they were carried along by the Holy Spirit.”
Further to this Christian theology holds the Bible as authoritative. However there are two schools of thought as to the accuracy of the Bible. Some Christians are of the view that the Bible is inerrant: that is the Bible is totally free from error and contradiction, including the scientific and historical parts. Other Christians take the Bible as infallible: inerrant on issues of practice and faith but not on issues pertaining to science or history. Most of the Christians who view the Bible as inerrant do so because they are of the opinion that the Bible cannot both be divinely inspired and also be errant or fallible.