Answer # 1
No. In fact, it is expressly unbiblical. Christ's disciples were not celibate. While Jesus himself was celibate, Peter (considered by Catholics the first "Pope") and several apostles had wives, as The Bible faithfully records.. And in ancient times, marriage was not binding unless it was consummated.
This is what the Bible *does* say:
Note, the word "Bishop" is in the greek as "episcopay", which literally means 'overseer', or 'one who looks over'. So this is regarding anyone in charge in the Church.
1Timothy 3:1-5 This is a true saying, If a man desire the office of a bishop, he desireth a good work. A bishop then must be blameless, the husband of one wife, vigilant, sober, of good behaviour, given to hospitality, apt to teach; Not given to wine, no striker, not greedy of filthy lucre; but patient, not a brawler, not covetous;
One that ruleth well his own house, having his children in subjection with all gravity;
(For if a man know not how to rule his own house, how shall he take care of the church of God?)
Catholics have traditions that contradict the Bible because they believe the word of the Pope is "infallible" and they honor the traditions of men above the Word of God. See what Jesus said about this:
Mark 7:5-9 Then the Pharisees and scribes asked him, Why walk not thy disciples according to the tradition of the elders, but eat bread with unwashen hands?
He answered and said unto them, Well hath Isaiah prophesied of you hypocrites, as it is written, This people honoreth me with their lips, but their heart is far from me.
Howbeit in vain do they worship me, teaching for doctrines the commandments of men. For laying aside the commandment of God, ye hold the tradition of men, as the washing of pots and cups: and many other such like things ye do. And he said unto them, Full well ye reject the commandment of God, that ye may keep your own tradition.
Note: Jesus is rebuking the religious priests of His day for upholding a false sense of purity, so man can feel self-righteous. Follow Jesus, not men. Follow His Word and voice only.
Note: Biblically, sex is rightly done within the context of marriage, and is considered holy.
Answer # 2 [improvements in progress]
No. The discipline of celibacy, did however, gradually grow out of the Church's understanding of the counsels of Christ and St. Paul in the Gospel of Matthew and 1 Corinthians respectively. Celibacy, or virginity for the sake of the kingdom of heaven finds its origins in the Gospel of Matthew when Christ says
Some are incapable of marriage because they were born so, some because they were made so by others; some because they have renounced marriage for the sake of the kingdom of heaven. Whoever can accept this ought to accept it. (Matthew 19:12 NAB)
When giving advice to married couples in Corinth, St. Paul also indicates his personal preference for celibacy when he writes Indeed, I wish everyone to be as I am... 1 Cor 7:7 NAB. He later sheds some light on some of the reasons why he prefers celibacy for himself and others in serving the Lord:
I should like you to be free of anxieties. An unmarried man is anxious about the things of the Lord, how he may please the Lord. But a married man is anxious about the things of the world, how he may please his wife, and he is divided...I am telling you this for your own benefit, not to impose a restraint upon you, but for the sake of propriety and adherence to the Lord without distraction. (1 Corinthians 7:32-33, 35 NAB)
It is worth noting that even among Eastern Catholics (e.g. Byzantine, Melkite, etc.) where priests may marry, celibacy is also held in high esteem precisely because of the counsels of Christ and St. Paul above, and many have also freely chosen celibacy for the kingdom of heaven. (cf. CCC 1580)
Significant figures and milestones in the history of the development of the discipline of celibacy can be found at the related link Catholic Encyclopedia: History of Clerical Celibacy below.
Another excellent resource for studying the Catholic Church's understanding of Christ's and St. Paul's counsels to celibacy can be found in John Paul II's book The Theology of the Body - Human Love in the Divine Plan at the related link below. The relevant sections of the book to study online are as follows:
REFERENCES
Confraternity of Christian Doctrine. The New American Bible, (Iowa Falls: IA, World Bible Publishers, Inc. 1991)
Libreria Editrice Vaticana. Catechism of the Catholic Church, (Mahwah, NJ: Paulist Press, 1994).
John Paul II. The Theology of the Body - Human Love in the Divine Plan, (Boston, MA: Pauline Books & Media, 1997).
Yes, Catholic priests have always been ordained from married men. Only in the Latin Rite in the West are only single men put up for ordination. However, all men, upon ordination make a promise of celibacy which means that if their wife dies, they may not remarry. There are some exceptions in the Latin Rite, as for instance, with converting Anglican priests who are already married, they take the same promise as Eastern Rite priests, they may remain married, but may not marry after ordination.
Yes, the Roman Catholic Church requires celibacy of its priests.
Catholic priests are, but they are not the only Christian denomination.
Catholic priests in the Latin Rite of the Church take promises of celibacy.
Roman Catholic priests started practicing celibacy in the 11th century. No priests can practice their priesthood if they are either married or having sex of any kind.
No. Priestly celibacy is a discipline of the Catholic Church, not a doctrine. There are married Catholic priests. More information below:
Roman Catholic priests today take a vow of celibacy, but many early popes were married men.
Roman Catholic AnswerThe church requires celibacy from your priests, but they do not take this vow at ordaination. The first of the major ordinantions is deacon, and all priests have been ordained to the deaconate at the end of their third year of theology. That is when they make a vow of celibacy.
The Vow of celibacy is meant to help priests focus on a relationship with God, rather than a relationship with a partner; Catholic priests are an alter Christus - another Christ, they are to mirror Him in their lives, they are His representatives; they are already "married" to the Church.
To devote themselvs to the church and not to women.
The vow of celibacy is practiced by Roman Catholic priests and religious brothers and sister/nun to consecrate themselves to God. They promised to be celibate in order to imitate the life Jesus the Christ.
This is quite wrong, for Catholic priests take a vow of celibacy, and there are no advantages for breaking this vow. if this isn't the answer you are looking for, make your question clearer.
it is in their vow of celibacy
The Catholic Church has never had female priests nor bishops, and will never have them.
There can be no such person as a "wife of the Pope". The Pope must be a Cardinal of the Catholic Church. Cardinals are, for the most part Bishops (with a few priests). All priests and bishops of the Catholic church take a vow of celibacy when they are first ordained and cannot ever marry. Even in the Eastern Rites which allow married priests, the Bishops are only chosen from the celibate priests.