There are several uses of the name or title Elias in the scriptures:
Elias is the New Testament (Greek) form of Elijah (Hebrew), as in Matt. 17:3–4, Luke 4:25–26, and James 5:17. In these instances, Elias was the ancient prophet Elijah whose ministry is recorded in 1 and 2 Kings.
Elias is also a title for one who is a forerunner. For example, John the Baptist was an Elias because he was sent to prepare the way for Jesus (Matt. 17:12–13).