And where does it say that? And don't give me the verses about His brothers and sisters. The guy in the next office to me has a brother but each of these guys has a different mother. The fact is that the Bible never says that Mary did or did not have other children. You have to draw your conclusion on this through inferences and the implications are overwhelmingly toward Mary not having any other children.
Matthew 1:24-25 Then Joseph being raised from sleep did as the angel of the Lord had bidden him, and
took unto him his wife: And knew her not till she had brought forth her firstborn son: and he called his name JESUS.
1. He took her as his wife.
2. He did not know her sexually as his own wife until or just after Christ was born. That is what the verse means. If you want to see other translations that make that translate it with more clarity I can post them. The KJV used great care and dignity.
Matthew 1:25 and didn't know her sexually until she had brought forth her firstborn son. He named him Jesus. WEB
(Mat 1:25) But they did not sleep together before her baby was born. Then Joseph named him Jesus. CEV
--The evidence is overwhelming as to the meaning of the verse.
HIS FAMILY:
John 7:2-3 Now the Jews' feast of tabernacles was at hand. His brethren therefore said unto him, Depart hence, and go into Judaea, that thy disciples also may see the works that thou doest.
--These are Jesus brothers or half-brothers speaking to him. Jesus is at home, and they are deriding him. "Why don't you go into Judea and do some miracles that your disciples can see you. "Sarcasm"
John 7:5 For neither did his brethren believe in him.
--This is the key verse. His real brothers did not believe on Christ. Mary did not remain a virgin.
John 7:10 But when his brethren were gone up, then went he also up unto the feast, not openly, but as it were in secret.
--He did go to the feast, but apart from his unbelieving brothers.
FURTHER EVIDENCE
Matthew 13:55 Is not this the carpenter's son? is not his mother called Mary? and his brethren, James, and Joses, and Simon, and Judas?
Matthew 13:56 And his sisters, are they not all with us? Whence then hath this
man all these things?
--This is the immediate family of Jesus: The carpenter's son, his "mother," his brothers, his sisters. As far as the public was concerned his entire immediate family is spoken of right here. His brothers this time are mentioned by name: James, Joses, Simon, and Judas. These are the brothers of Jesus.
FURTHER EVIDENCE
Jude 1:1 Jude, the servant of Jesus Christ, and
brother of James, to them that are sanctified by God the Father, and preserved in Jesus Christ,
and called:
Galatians 1:19 But other of the apostles saw I none, save
James the Lord's brother.
--It specifically states that James is the Lord's brother, and that Jude is the brother of James. They are both the half brothers of Christ.
You can deny the evidence, but Mary did not remain a virgin. All these children were hers, the half-brothers of Christ.
This is the family of Christ.