Apostle Jude, also known as Jude Thaddeus, was one of the twelve apostles of Jesus Christ. He is often identified as the brother of James and is traditionally believed to be a relative of Jesus. Jude is known for his letter in the New Testament, the Epistle of Jude, which warns against false teachers and encourages believers to remain faithful. Jude is sometimes confused with Judas Iscariot, the apostle who betrayed Jesus. To avoid this confusion, he is often referred to as Jude the Apostle or Jude of James. His feast day is celebrated on October 28 in the Western Christian tradition, honoring his contributions to early Christianity.