Christian demonology is the study of demons and evil spirits within the context of Christian theology. It explores the nature, hierarchy, and activities of these entities, often referencing biblical texts such as the New Testament and the Old Testament. Demons are typically viewed as fallen angels who rebelled against God and now seek to lead humans away from righteousness. In Christian belief, demons can possess individuals, influence thoughts, and cause various forms of suffering. The practice of exorcism, which aims to expel demons from afflicted individuals, is rooted in this understanding. Key figures in this field include Saint Michael, who is often depicted as a warrior against evil, and Jesus Christ, who is believed to have authority over demons.