Additionally the use of the genitive case of "James" (Iakovou) in Greek, usually signifies or implies the person's father to be distinguished from his homonyms.

[14] According to the surviving fragments of the work Exposition of the Sayings of the Lord of the Apostolic Father Papias of Hierapolis, who lived c. 70–163 AD, Mary the wife of Cleophas or Alphaeus would be the mother of Judas the brother of Jesus that Papias identifies with Thaddeus: Mary the wife of Cleophas or Alphaeus, who was the mother of James the bishop and apostle, and of Simon and Thaddeus, and of one Joseph...(Fragment X)[15]In the apostolic lists at Matthew 10:3 and Mark 3:18, Jude is omitted, but there is a Thaddeus (or in some manuscripts of Matthew 10:3, "Lebbaeus who was surnamed Thaddaeus", as in the King James Version) listed in his place.

This is made plausible by the fact that a number of New Testament figures have multiple names (such as Simon Peter and Joseph Barnabas).

[17] They have proposed alternative theories to explain the discrepancy: an unrecorded replacement of one for the other during the ministry of Jesus because of apostasy or death;[18] the possibility that "twelve" was a symbolic number and an estimation;[19] or simply that the names were not recorded perfectly by the early church.

According to the Golden Legend, which is a collection of hagiographies compiled by Jacobus de Voragine in the thirteenth century: This Judas was called by many names.

[23][24] In the same work, Simon Cananean and Judas Thaddeus are described as siblings of James the Less and sons of Mary of Clopas, who was married to Alpheus.

[25] Tradition holds that Jude preached the Gospel in Judea, Samaria, Idumaea, Syria, Mesopotamia and Libya.

The legend reports that Jude was born into a Jewish family in Paneas, a town in Galilee later rebuilt during the Roman period and renamed Caesarea Philippi.

The construction site of the Church was chosen by Vazgen I, the Catholicos of All Armenians, in 1991 and the ground blessing service was conducted in the same year.

According to tradition, Jude suffered martyrdom about 65 AD in Beirut, in the Roman province of Syria during the 1st century in Lebanon together with the apostle Simon the Zealot, with whom he is usually connected.

[34] According to one account, Jude's body was brought from Beirut to Rome and placed in a crypt in St. Peter's Basilica which is visited by many devotees.

His bones are in the left transept of St. Peter's Basilica under the main altar of St. Joseph, in one tomb with the remains of the apostle Simon the Zealot.

[35][36] According to another popular tradition, the remains of Jude were preserved in an Armenian monastery on an island in the northern part of Issyk-Kul Lake in Kyrgyzstan at least until the mid-15th century.

Eusebius relates that King Abgar of Edessa (now Şanlıurfa in southeast Turkey) sent a letter to Jesus seeking a cure for an illness afflicting him.

With the letter he sent his envoy Hannan, the keeper of the archives, offering his own home city to Jesus as a safe dwelling place.

Additionally, Jude is often depicted with a flame above his head, representing his presence at Pentecost, when he was said to have received the Holy Spirit with the other apostles.

This practice is said to stem from the belief that few Christians invoked him for misplaced fear of praying to Christ's betrayer, Judas Iscariot, because of their similar names.

The National Shrine of Saint Jude Thaddeus in the Philippines was erected by the Archdiocese of Manila in 1954 as Espíritu Santo Chinese Parish.

Muslim exegesis, however, more or less agrees with the New Testament list and says that the disciples included Peter, Philip, Thomas, Bartholomew, Matthew, Andrew, James, Jude, John and Simon the Zealot.