But he ALSO said, “ Now the overseer (bishop, elder) must be above reproach, the husband of one wife, temperate, self-controlled, respectable, hospitable, able to teach, not given to drunkenness, ...” 1 Timothy 3:2. It goes on to say that his children must respect him, etc, for if a man does not know how to control his family, how can he rule the church.
No where does it say that a man, in order to serve the church in any capacity, MUST be celebate. It does say that if he can remain celebate it is a good thing, but there is no requirement in the Bible that decrees this.
But lest you forget, the tradition of a celibate clergy is one of Apostolic Tradition, not Scriptural mandate. The decision, over time, of the Western Church (remember, the Eastern Catholic - in union with Rome - and Orthodox Churches have always ordained married, as well as celibate, men) to enforce a rule of celibacy among those ordained to the priesthood, is one of practice, not of Dogma. It is a venerable tradition that can be changed, if the Church so chooses.
That being said, the Church has maintained this tradition (celibate clergy) as the norm for ordination for over a thousand years now, though freely-chosen celibacy seems to date back to the Apostolic era. You must remember, that Apostolic traditions carry much weight on the decisions of the Church. The Church came before the Bible and she derives authoritative beliefs as well as venerable traditions from both Scripture and Tradition.
Priestly celibacy is not an unchangeable “big T” Tradition (i.e. from the once-given Deposit of the Faith in Scripture and Apostolic Tradition). But, the Church and her leaders were given authority by our Lord to bind and to loose (i.e. to make binding decisions). For many years now, the decision has been made in the Western Catholic Church to require celibacy of those that she considers for ordination to the priesthood. She may be led, one day, to loosen that restriction, but for now it is the law of the Church.