Little is known about Justus. He appears in the third position of all the episcopal lists of Jerusalem, succeeding
James the Just and
Simeon of Clopas, starting with that of
Eusebius of Caesarea. He is probably the leader of the city's Nazarene community, or at least of those who survived the massive Romans repressions after the Jewish revolt of 66-74 and its upheavals. Eusebius of Caesarea specifies that he was circumcised, the Nazarene movement considering itself to be a Jewish movement. However, during the last quarter of the first century the rift between the Nazoreans and the Jewish community widened.
Simon Claude Mimouni believes that it is possible that Justus is the son of
James, the
“brother” of Jesus. In this case, he would have acceded to the episcopate at an advanced age since he would be "necessarily born before 61/62, date of the execution of his father, which could then explain the short duration of his mandate", in particular if Simeon died under the consulate of
Tiberius Claudius Atticus Herodes (103), as
Eusebius of Caesarea indicates. He is called Justus (Latinized form of "the Righteous") in most sources. In one of the episcopal lists, the character nicknamed Justus (the 3rd on the list) is nicknamed Barsabas (see below). He is however designated under the name of Judas by
Epiphanius of Salamis who quotes the list of the
Apostolic Constitutions (VII, 46, 1). that is to say "
James, brother of Christ according to the flesh" as stated in
Apostolic Constitutions VIII, 35, 1. The pseudonym - or name - Justus (the Righteous) is found very frequently among members of the family of Jesus, who is himself called the Righteous (and not Jesus) by
Stephen in his speech as recomposed in the
Acts of the Apostles (v. 37), or by
Claudia Procula, Pilate's wife at the time of his trial. His name could therefore be Judas, but he is better known by his nickname "the Righteous", which almost becomes a title. ==Justus Barsabee ==