Catholic saint biography

St. Jude Thaddeus

St. Jude Thaddeus is one of Jesus' Twelve Apostles. His feast day in the Roman Catholic calendar is October 28, shared with Saint Simon. Jude is distinct from Judas Iscariot, the apostle who betrayed Jesus.

Commemoration:
October 28
Lived:
First century — First-century Jewish world

Roman feast shared with Simon the Apostle.

Why dates and liturgical observances can differ

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Jude Thaddeus: painted portrait of a bearded apostle in a dark cloak
Anthony van Dyck · Source ↗ · Public domain · Resized for the web; no cropping or retouching.

Jude Thaddeus: feast day, names and Scripture

When is Saint Jude Thaddeus' feast day?

October 28 is the Feast of Saints Simon and Jude, Apostles, in the Roman Catholic calendar. In 2026 it falls on a Wednesday. The celebration honors both apostles; a parish or shrine may also arrange devotional events on nearby dates. Check its published schedule for Mass or novena times.

Are Jude, Thaddeus and Thaddaeus the same apostle?

Thaddeus and Thaddaeus are spellings used for the apostle traditionally identified with Jude. Benedict XVI explains that Matthew and Mark name Thaddaeus, while Luke and Acts name Judas, son of James. This is why Catholic biographies often combine the names as Jude Thaddeus. He is not Judas Iscariot.

What do we know about Jude from the Gospels?

The New Testament gives relatively little biographical detail about him. Benedict XVI draws attention to John 14:22–23: at the Last Supper, Jude asks why Jesus will reveal himself to the disciples rather than to the world. Jesus' reply connects love, keeping his word and communion with the Father. This passage offers a firmer starting point than treating later stories about Jude's travels as equally well documented.

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Biography

Jude Thaddeus is remembered among Jesus' apostles and distinguished from Judas Iscariot. The New Testament provides little biographical information about him. Christian tradition associates him with the disciple in John's Gospel who asks why Jesus will reveal himself to the disciples rather than to the world, a question answered in terms of love, obedience, and God's dwelling with believers.

The shared names in the apostolic lists have produced complicated identifications. The disciple explicitly distinguished from Judas Iscariot in John 14 is remembered for a question about how Christ becomes known. Jesus' answer turns attention to keeping his word and receiving God's presence, rather than offering a political display of power.

Later accounts connect his preaching with Syria, Mesopotamia, and Persia, but the itineraries and circumstances of his martyrdom cannot be reconstructed securely. His identity should also not be collapsed without explanation into every biblical person called Jude. The Roman Church celebrates him with Simon on October 28, honoring their apostolic witness despite the scarcity of reliable personal details.

Relics attributed to Simon and Jude are venerated together at Saint Peter's in Rome. Such later devotion explains their prominence in worship but does not provide an independently established travel diary. A restrained biography should preserve that distinction instead of assigning precise journeys and speeches where the earliest sources remain silent.

Context & contribution

The ethical argument of the Letter of Jude

The New Testament letter traditionally associated with Jude addresses a broad Christian audience rather than one named local church. Its concern is the misuse of grace as permission for destructive conduct. Benedict XVI's treatment draws attention to the link between belief, moral responsibility, and the community's protection from divisive teaching.

The letter's severe images give way to instructions about prayer, remaining in God's love, mercy, and care for those who doubt. Studying that movement is more fruitful than importing a detailed apostolic travel story into the text. Traditional attribution connects the writing with Jude's remembrance, while the text itself supplies the evidence for its teaching.

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From reading to reflection

What will you carry with you?

After reading about St. Jude Thaddeus, take a moment to consider:

  1. Trace the movement from warning to mercy in Jude 17–25; discuss how a community can protect its commitments while treating doubters with care.

These are reflection prompts from Saint Discovery, not quotations from the saint.

Sources and further reading

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