James the Just, or a variation of James, brother of the Lord (Iacobus from יעקב, Ya'aqov and Ἰάκωβος, Iákōbos, can also be Anglicized as "Jacob"), was "a brother of Jesus", according to the New Testament. He was an early leader of the Jerusalem Church of the Apostolic Age. Traditionally, it is believed he was martyred in AD 62 or 69 by being stoned to death by the Pharisees on order of High Priest Ananus ben Ananus.
Catholics and Eastern Orthodox Christians teach that James, along with others named in the New Testament as "brothers" of Jesus, were not the biological children of Mary, mother of Jesus, but were possibly cousins of Jesus, or step-brothers from a previous marriage of Joseph (as related in the non-canonical Gospel of James).
The Catholic tradition holds that this James is to be identified with James, son of Alphaeus, and James the Less. It is agreed by most that he should not be confused with James, son of Zebedee also known as James the Great.
Eusebius records that Clement of Alexandria related, "This James, whom the people of old called the Just because of his outstanding virtue, was the first, as the record tells us, to be elected to the episcopal throne of the Jerusalem church." Other epithets are "James the brother of the Lord, surnamed the Just," and "James the Righteous".
He is sometimes referred to in Eastern Christianity as "James Adelphotheos" (Ἰάκωβος ὁ Ἀδελφόθεος), meaning "James the Brother of God". The oldest surviving Christian liturgy, the Liturgy of St James, uses this epithet.
Early centers of Christianity#Jerusalem
The Jerusalem Church was an early Christian community located in Jerusalem, of which James and Peter were leaders. According to a universal tradition the first bishop was the Apostle James the Less, the "brother of the Lord". His predominant place and residence in the city are implied by Galatians 1:19. Eusebius says he was appointed bishop by Peter, James (the Greater), and John (II, i).