Adoptionism, also called dynamic monarchianism,[1] is an early Christian nontrinitarian theological doctrine,[1] subsequently revived in various forms, which holds that Jesus was adopted as the Son of God at his baptism, his resurrection, or his ascension. How common adoptionist views were among early Christians is debated, but it appears to have been most popular in the first, second, and third centuries. Some scholars see adoptionism as the belief of the earliest followers of Jesus, based on the epistles of Paul and other early literature. However, adoptionist views sharply declined in prominence in the fourth and fifth centuries, as Church leaders condemned it as a heresy.
The paucity of extant evidence makes an exact knowledge about the views of what modern scholars have dubbed "adoptionist" or 'dynamic' monarchianism uncertain. No documents written by adherents to this strain of Christian theology have survived. As a result, we cannot say what constituted a purely adoptionist viewpoint or how closely associated it was with what is typically called 'modalism'. True to its emphasis on divine monotheism, 'adoptionism' opposed any substantial division within God when it came to the incarnation of Christ as the Logos of God. As a result, the Jesus of the Gospels was a man empowered by the one God.