Did Jesus have brothers and sisters?
Question 3002
The question of whether Jesus had brothers and sisters has been debated throughout Church history, largely due to the Roman Catholic doctrine of Mary’s perpetual virginity. Yet when we approach Scripture simply asking what the text actually says, the answer becomes remarkably clear. The Gospels and epistles speak plainly about Jesus having siblings, and understanding this helps us appreciate both the humanity of Jesus and the ordinary family context into which the Son of God was born.
What the Gospels Tell Us
The clearest evidence comes from the Gospel accounts themselves. In Matthew 13:55-56, the people of Nazareth, astonished at Jesus’ teaching, ask: “Is not this the carpenter’s son? Is not his mother called Mary? And are not his brothers James and Joseph and Simon and Judas? And are not all his sisters with us?” Notice what is being said here. The townspeople who had known Jesus all His life, who had watched Him grow up in their community, identify Him by His family. They name four brothers and refer to sisters in the plural, meaning at least two. This gives us a minimum of six siblings: James, Joseph (or Joses), Simon, Judas, and at least two sisters whose names are not recorded.
Mark 6:3 provides a parallel account: “Is not this the carpenter, the son of Mary and brother of James and Joses and Judas and Simon? And are not his sisters here with us?” The Greek word used here is ἀδελφός (adelphos), which in its most natural sense means a blood brother, a sibling from the same mother. Some have argued this word can mean “cousin” or “kinsman,” but this stretches the language beyond its normal usage. Greek has a perfectly good word for cousin, ἀνεψιός (anepsios), which Paul uses in Colossians 4:10 when referring to Mark as Barnabas’ cousin. If the Gospel writers meant cousins, they had the vocabulary to say so.
Jesus’ Brothers During His Ministry
What is particularly striking is that during Jesus’ earthly ministry, His brothers did not believe in Him. John 7:5 states plainly: “For not even his brothers believed in him.” This was in the context of the Feast of Tabernacles when His brothers somewhat mockingly encouraged Him to go to Judea and show Himself publicly. There is a poignancy here. Jesus, the eternal Son of God, grew up in a household where His own siblings did not recognise who He was. They had seen Him every day, eaten meals with Him, worked alongside Him in the carpenter’s shop, and yet they did not believe.
This unbelief is also reflected in Mark 3:21, where we read that Jesus’ family “went out to seize him, for they were saying, ‘He is out of his mind.'” His own relatives thought He had lost His senses. Later in that same chapter, when told that His mother and brothers were outside asking for Him, Jesus used the moment to teach about spiritual family: “Who are my mother and my brothers? … Whoever does the will of God, he is my brother and sister and mother” (Mark 3:33, 35). Jesus was not being dismissive of His earthly family, but He was making clear that spiritual relationship takes precedence over biological ties.
After the Resurrection
Something remarkable happened after the resurrection. In Acts 1:14, we find the disciples gathered in the upper room, “with the women and Mary the mother of Jesus, and his brothers.” His brothers are now among the believers. What changed? They had seen the risen Lord. Paul tells us in 1 Corinthians 15:7 that Jesus “appeared to James.” This was likely the turning point for at least one of the brothers. The one who had thought Jesus was out of His mind now became a pillar of the Jerusalem church.
James, the brother of Jesus, became the leader of the Jerusalem church and the author of the epistle that bears his name. In Galatians 1:19, Paul refers to him as “James the Lord’s brother,” using the same word ἀδελφός. This James presided over the Jerusalem Council in Acts 15 and was held in such high regard that Paul specifically mentions meeting with him. Jude, another brother, is almost certainly the author of the epistle of Jude, who identifies himself as “a servant of Jesus Christ and brother of James” (Jude 1:1). Out of humility, neither James nor Jude identified themselves as brothers of Jesus in their letters, instead calling themselves servants.
The Question of Mary’s Perpetual Virginity
The Roman Catholic and Eastern Orthodox traditions teach that Mary remained a virgin throughout her life, and therefore Jesus could not have had blood siblings. To maintain this doctrine, these traditions argue that the “brothers” were either Joseph’s children from a previous marriage (the Epiphanian view) or cousins (the Hieronymian view, named after Jerome). But neither of these explanations fits the biblical evidence well.
Matthew 1:25 tells us that Joseph “knew her not until she had given birth to a son.” The word “until” (ἕως, heōs) strongly implies that the situation changed after Jesus’ birth. The natural reading is that Joseph and Mary had a normal marital relationship after Jesus was born. There is nothing in Scripture to suggest otherwise, and indeed the Bible honours the marriage bed as undefiled (Hebrews 13:4). The perpetual virginity of Mary is a tradition that developed later in Church history, not something taught in Scripture.
Furthermore, Luke 2:7 describes Jesus as Mary’s “firstborn son” (πρωτότοκον, prōtotokon). While it is true that “firstborn” can be a legal term for the one who receives the inheritance rights regardless of whether other children follow, in the context of the other references to Jesus’ brothers and sisters, the most natural reading is that other children did follow.
Why This Matters
Understanding that Jesus had brothers and sisters helps us appreciate the full reality of the incarnation. The Son of God did not descend into a sanitised, unusual family situation. He grew up in an ordinary household with siblings who squabbled, with brothers who did not understand Him, with all the dynamics of family life. He knows what it is to be misunderstood by those closest to Him. He experienced the joys and frustrations of family relationships.
It also reminds us that coming from a believing home is no guarantee of faith. Jesus’ brothers had every advantage. They lived with the sinless Son of God. They heard His words, saw His character, witnessed His perfect life. And yet they did not believe until after His resurrection. Faith is not inherited; it must be personal. Each person must come to their own recognition of who Jesus is.
Finally, the transformation of James and Jude from sceptics to servants of Jesus Christ encourages us. If Jesus’ own brothers could move from thinking He was mad to worshipping Him as Lord, there is hope for everyone. The resurrection changed everything for them, and it changes everything for all who believe.
Conclusion
The straightforward reading of Scripture is that Jesus had at least four brothers (James, Joseph, Simon, and Judas) and at least two sisters. These were the children of Mary and Joseph, born after Jesus. During His ministry they did not believe, but after His resurrection, at least James and Jude became faithful followers, with James leading the Jerusalem church and both writing New Testament epistles. The doctrine of Mary’s perpetual virginity, while sincerely held by many Christians, finds no support in the biblical text and requires the plain meaning of words to be stretched beyond their natural sense.
“Is not this the carpenter’s son? Is not his mother called Mary? And are not his brothers James and Joseph and Simon and Judas? And are not all his sisters with us?” Matthew 13:55-56
