A verse by verse bible commentary in the book of Jude by Pastor Chuck Smith
The word servant is doulos and it is a bond slave of Jesus Christ. In the New Testament, there are three Judes. Jude is the same as Judas, it’s the same name as Judas and it is the Greek for the Hebrew name, Judah. And so there are three men by the name of Judas in the New Testament. There is the one that we’re most familiar with is Judas Iscariot. He is the one that is mentioned more than all of the others.
But in Mark chapter six, verse three, we have an interesting passage when Jesus had come to Capernaum, the people were stumbled because they knew Him, they said, Is not this the carpenter, the son of Mary and the brother of James and Joses and of Judah and Simon? And are not His sisters here with us? And they were offended at Him. And so there was a Judah or Judas, Jude, who was a brother, half-brother to Jesus, Son of Mary, son of Joseph, a half-brother to Jesus. He had a brother by the name of James. And you have other passages where it makes mention of Jude, the brother of James. He tells you here that he is the brother of James.