Very little is recorded about St. Jude: Benedict XVI observed that the Gospels give him one question at the Last Supper, and the Letter of Jude bears his name. The Roman relics are venerated by ancient tradition; no modern scientific identification is claimed for them.

At St. Peter's the altar of St. Joseph stands in the left transept. The basilica says access can be limited during major celebrations, and which areas are open varies from day to day, so if praying there is the purpose of your visit, go early and ask the basilica staff when you arrive.

The arm reliquary from San Salvatore in Lauro left Italy for a tour of the United States from September 2023 to May 2024. The tour's organizers wrote that when the saints help us, "it is Christ who does so through their intercession." St. Jude is invoked in desperate cases by long custom, not by any decree of the Church.