Three is speculation that he should have been married. In the Jewish faith only those who were married were allowed to teach in the temple. Also it is very common and almost unheard of for devout Jewish young men to not be married by their mid twenties. There is also speculation that the wedding feast referred to in the scripture was possibly Christ's wedding celebration.
I have not researched this in detail but have heard it discussed in classes on the New Testament.
These are only my opinions and not LDS doctrine.
"If a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts he shall end in certainties." Sir Francis Bacon