|Easton's Bible Dictionary|
(1.) Another name for Joseph, surnamed Barsabas. He and Matthias are mentioned only in Acts 1:23. "They must have been among the earliest disciples of Jesus, and must have been faithful to the end; they must have been well known and esteemed among the brethren. What became of them afterwards, and what work they did, are entirely unknown" (Lindsay's Acts of the Apostles).
(2.) A Jewish proselyte at Corinth, in whose house, next door to the synagogue, Paul held meetings and preached after he left the synagogue (Acts 18:7).
(3.) A Jewish Christian, called Jesus, Paul's only fellow-labourer at Rome, where he wrote his Epistle to the Colossians (Colossians 4:11).
Int. Standard Bible Encyclopedia
je'-zus jus'-tus Iesous ho legomenos Ioustos, "Jesus that is called Justus," Colossians 4:11):
1. A Jew by Birth:
One of three friends of Paul-the others being Aristarchus and Mark-whom he associates with himself in sending salutations from Rome to the church at Colosse. Jesus Justus is not mentioned elsewhere in the New Testament, and there is nothing more known about him than is given in this passage in Colossians, namely, that he was by birth a Jew-"of the circumcision"-that he had been converted to Christ, and that he was one of the inner circle of intimate friends and associates of the apostle during his first Roman captivity.
2. He Remains True to Paul:
The words also contain the information that at a stage in Paul's imprisonment, when the welcome extended to him by the Christians in Rome on his arrival there had lost its first warmth, and when in consequence, probably, of their fear of persecution, most of them had proved untrue and were holding aloof from him, J. J. and his two friends remained faithful. It would be pressing this passage unduly to make it mean that out of the large number-hundreds, or perhaps even one or two thousands-who composed the membership of the church in Rome at this time, and who within the next few years proved their loyalty to Christ by their stedfastness unto death in the Neronic persecution, all fell away from their affectionate allegiance to Paul at this difficult time. The words cannot be made to signify more than that it was the Jewish section of the church in Rome which acted in this unworthy manner-only temporarily, it is to be hoped. But among these Jewish Christians, to such dimensions had this defection grown that Aristarchus, Mark and J. J. alone were the apostle's fellow-workers unto the kingdom of God. These three alone, at that particular time-from among the Jewish Christians-were helping him in the work of the gospel in Rome. That this defection refers to the Jewish section of the church and not to the converts from among the Gentiles, is evident from many considerations. It seems to be proved, for example by verse 14 of the same chapter (i.e. Colossians 4:14), as well as by Philemon 1:24, in both of which passages Paul names Demas and Luke as his fellow-laborers; and Luke was not a Jew by birth. But in the general failure of the Christians in Rome in their conduct toward Paul, it is with much affection and pathos that he writes concerning Aristarchus, Mark, and J. J., "These only are my fellow-workers unto the kingdom of God, men that have been a comfort unto me."
jus'-tus (Ioustos): There are three of this name mentioned in the New Testament.
(1) It was the Roman surname of JOSEPH BARSABBAS (which see) (Acts 1:23).
(2) A Corinthian proselyte (sebomenos ton Theon), whose house adjoined the synagogue and who received Paul when the Jews opposed him (Acts 18:7). He was probably a Roman citizen, one of the colonies, and so he would be of assistance to the apostle in his work among the better class of Corinth. There is some disagreement among manuscripts regarding the name. Textus Receptus of the New Testament gives "Justus" alone. the Revised Version (British and American) following Codex Sinaiticus, Codex E, Vulgate, Bohairic, Armenian, gives "Titus Justus"; Westcott and Hort, The New Testament in Greek, Tischendorf, Codex Vaticanus, Codex Bezae, give "Titius Justus"; Cheyne (EB, under the word "Justus") thinks these forms a corruption of "Tertius Justus," and that the bearer of the name was the "Tertius" of Romans 16:22. Paul still continued his lodgings with Aquila and Priscilla, but made the house of Justus his own synagogue.
(3) A Jew, Jesus Justus, mentioned with Mark and Aristarchus by Paul in his letters to the Colossians (Colossians 4:11), is a fellow-worker and one that had been a comfort unto him.
S. F. Hunter
See JUSTUS, (2); TITUS JUSTUS.
Justus (3 Occurrences)
Acts 1:23 They put forward two, Joseph called Barsabbas, who was surnamed Justus, and Matthias. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Acts 18:7 He departed there, and went into the house of a certain man named Justus, one who worshiped God, whose house was next door to the synagogue. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Colossians 4:11 and Jesus who is called Justus, who are of the circumcision. These are my only fellow workers for the Kingdom of God, men who have been a comfort to me. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)