1.where does it say that he knew her After Mary gave brith...that is not what it says....Where does it say she did had relations with Joseph?
Matthew 1:24-25
Then Joseph, being aroused from sleep, did as the angel of the Lord commanded him and took to him his wife, and did not know her till she had brought forth her firstborn Son. And he called His name JESUS.
2. suppressing ? We are not suppressing ...the text says brother but in Greek that is not that Brother or sister is used for the same as you use it in America here....it does mean in the spiritual or fillial sense...both are included.
The Greek word that everyone is throwing around "adelphos" means EITHER brother and sister in the literal sense or brother and sister in the spiritual sense, and you determine which, by the context that word is used, and if you read the context of where it call Christ's brother, it takes away the idea that the word "brother" means disciple. Why? Well go ahead and read Mark 6:1-6, the people that would have known Christ the most, would be the Nazarenes who grew up with Him, and it is they who name His brothers. They specifically said in verse 3:
"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?" And they took offense at Him."
And Jesus responded in verse 4 as saying
"And Jesus said to them, "A prophet is not without honor, except in his hometown and among his relatives and in his own household."
Please be aware that we are told that Jesus was preaching on the Sabbath day in the Synagogue and His disciples were with Him, but it was not their name that the person spoke of when they named His brothers.
And the word for cousin in Greek is "anepsios" and that is not what was said in those verses.
Isn't it interested, In the New Testament, some are called brothers and sisters, Peter and Andrew, James the son of Zebedee and John, Mary and Martha, yet we never question where it means brother or sister in the spiritual sense, but once the scripture tell us that Jesus had brothers and sisters, all of a sudden, it's a big deal, and that word in the context, does really mean what it says it does. Interesting, isn't it.
3. Where in the scripture it says Mary did not remain virgin. Where in the scripture it says "Mary had more children from Joseph" ?
Does it have to say that "Mary had more children from Joseph"? Could it not say and then imply that when Jesus had brothers and sisters, they were His Mother's and Joseph's kids. For we are not told that she remarried, or that she had kids from another man, so why then when they speak of her children, should I not assume that they are from Joseph. And the sheer fact that we know that He had brothers and sisters, already implies that she had sex after she gave birth to Christ. Again, so does Matthew 1:24-25.