Read Timothy 3:2
“A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behavior, given to hospitality, apt to teach.”
The Bible is not silent that Mary ascended into heaven after her death. The Bible says nothing about her birth.
The fact is the Church took many centuries to implement its current policy of clerical celibacy. For a quick reference to see how, when, and why the policy was instituted, go to Wikipedia.com. Type in clerical celibacy.
There you might find a somewhat more unbiased account.
Ok, you go read the wikipedia article too.
I don't think it means everything that you think it says.
Specifically "The Council of Elvira (306) is often seen as the first to issue a written regulation requiring clergy to abstain from sexual intercourse. Its canon 33 decreed: "Bishops, presbyters, deacons, and others with a position in the ministry are to abstain completely from sexual intercourse with their wives and from the procreation of children. If anyone disobeys, he shall be removed from the clerical office."[36]"
and earlier in the article is this:
"One interpretation of "the husband of one wife" is that the man to be ordained could not have been married more than once and that perfect continence, total abstinence, was expected from him starting on the day of his ordination.[18][19][20][21]"