Jesus NEVER had children. Whomever says this does not understand what Jesus did or the Law. To have a child means he defiled a woman at sex. And that is a temporary minor sin of uncleanliness (the act of sex is defilement whether married or not). When you cross secretions you are defiled and the remedy is to wash with water.
This explains why Mary had to be a virgin. He could have been conceived due to an act of defilement.
(Again, Mosaic Law "defilement" is not modern day defilement)
Jesus never broke any Torah Law thus never sinned, thus never had sex with a woman.
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PS1