Christian theology is the theology of Christian belief and practice. Such study concentrates primarily upon the texts of the Old Testament and of the New Testament, as well as on Christian tradition. Christian theologians use biblical exegesis, rational analysis and argument.
The temptation of Christ is a biblical narrative detailed in the gospels of Matthew, Mark, and Luke. After being baptized by John the Baptist, Jesus was tempted by the devil after 40 days and nights of fasting in the Judaean Desert. At the time, Satan came to Jesus and tried to tempt him. Jesus having refused each temptation, Satan then departed and Jesus returned to Galilee to begin his ministry. During this entire time of spiritual battle, Jesus was fasting.
In Christianity, the Devil is the personification of evil who rebelled against God in an attempt to become equal to God himself. He is depicted as a fallen angel, who was expelled from Heaven at the beginning of time, before God created the material world, and is in constant opposition to God. The devil is identified with several figures in the Bible including the serpent in the Garden of Eden, Lucifer, Satan, the tempter of the Gospels, Leviathan, and the dragon in the Book of Revelation.
Lucifer is the Latin name for the morning appearances of the planet Venus. It corresponds to the Greek names Phosphorus Φωσφόρος, "light-bringer", and Eosphorus Ἑωσφόρος, "dawn-bringer". The entity's Latin name was subsequently absorbed into Christianity as a name for the devil. Modern scholarship generally translates the term in the relevant Bible passage (Isaiah 14:12), where the Greek Septuagint reads ὁ ἑωσφόρος ὁ πρωὶ, as "morning star" or "shining one" rather than as a proper noun, Lucifer, as found in the Latin Vulgate.
In various theistic religious traditions, an angel is a supernatural spiritual being who serves God. Abrahamic religions often depict angels as benevolent celestial intermediaries between God (or Heaven) and humanity. Other roles include protectors and guides for humans, such as guardian angels, and servants of God. Abrahamic religions describe angelic hierarchies, which vary by religion and sect. Some angels have specific names (such as Gabriel or Michael) or titles (such as seraph or archangel).
Fallen angels are angels who were expelled from heaven. The literal term "fallen angel" does not appear in any Abrahamic religious texts, but is used to describe angels cast out of heaven or angels who sinned. Such angels often tempt humans to sin. The idea of fallen angels derived from the Book of Enoch, a Jewish pseudepigraph, or the assumption that the "sons of God" () mentioned in Genesis 6:1–4 are angels. In the period immediately preceding the composition of the New Testament, some sects of Judaism, as well as many Christian Church Fathers, identified these same "sons of God" as fallen angels.
Paradise Lost is an epic poem in blank verse by the 17th-century English poet John Milton (1608–1674). The first version, published in 1667, consists of ten books with over ten thousand lines of verse. A second edition followed in 1674, arranged into twelve books (in the manner of Virgil's Aeneid) with minor revisions throughout. It is considered to be Milton's masterpiece, and it helped solidify his reputation as one of the greatest English poets of all time.
Belial (, Bəlīyyaʿal) is a term occurring in the Hebrew Bible/Old Testament which later became personified as the devil in Christian texts of the New Testament. Alternate spellings include Baalial, Balial, Belhor, Beliall, Beliar, Berial, Bylyl and Beliya'al. In the Secret Book of John, an early Gnostic text, the ruler of the underworld is referred to as Belias. Belial is a Hebrew word "used to characterize the wicked or worthless". The etymology of the word is often understood as "lacking worth", from two common words: beli- (בְּלִי "without-") and ya'al (יָעַל "to be of value").
Satan, also known as the Devil, and sometimes also called Lucifer in Christianity, is an entity in Abrahamic religions that seduces humans into sin or falsehood. In Judaism, Satan is seen as an agent subservient to God, typically regarded as a metaphor for the yetzer hara, or "evil inclination". In Christianity and Islam, he is usually seen as a fallen angel or jinn who has rebelled against God, who nevertheless allows him temporary power over the fallen world and a host of demons.
Serpents (נָחָשׁ) are referred to in both the Hebrew Bible and the New Testament. The symbol of a serpent or snake played important roles in the religious traditions and cultural life of ancient Greece, Egypt, Mesopotamia, and Canaan. The serpent was a symbol of evil power and chaos from the underworld as well as a symbol of fertility, life, healing, and rebirth. Nāḥāš (), Hebrew for "snake", is also associated with divination, including the verb form meaning "to practice divination or fortune-telling".
