Christian terminology and theological views of marriage vary by time period, by country, and by the different Christian denominations.

Catholic and Eastern Orthodox Christians consider marriage as a holy sacrament or sacred mystery, while Protestants consider marriage to be a sacred institution or "holy ordinance" of God. However, there have been differing attitudes among denominations and individual Christians towards not only the concept of Christian marriage, but also concerning divorce, remarriage, gender roles, family authority (the "headship" of the husband), the legal status of married women, birth control, marriageable age, cousin marriage, marriage of in-laws, interfaith marriage, same-sex marriage, and polygamy, among other topics, so that in the 21st century there cannot be said to be a single, uniform, worldwide view of marriage among all who profess to be Christians.

Christian teaching has never held that marriage is necessary for everyone; for many centuries in Western Europe, priestly or monastic celibacy was valued as highly as, if not higher than, marriage. Christians who did not marry were expected to refrain from all sexual activity, as were those who took holy orders or monastic vows.

In some Western countries, a separate and secular civil wedding ceremony is required (sometimes compulsory before any religious marriage [fr]) for recognition by the state, while in other Western countries, couples must merely obtain a marriage license from a local government authority and can be married by Christian or other clergy if they are authorized by law to conduct weddings. In this case, the state recognizes the religious marriage as a civil marriage as well; and Christian couples married in this way have all the rights of civil marriage, including, for example, divorce, even if their church forbids divorce.

Polygyny, or men having multiple wives at once, is one of the most common marital arrangements represented in the Old Testament, yet scholars doubt that it was common among average Israelites because of the wealth needed to practice it. Both the biblical patriarchs and kings of Israel are described as engaged in polygamous relationships. Despite the various polygynous relationships in the Bible, Old Testament scholar Peter Gentry has said that it does not mean that God condones polygyny. He also made note of the various problems that polygynous relationships present with the examples of Abraham, Jacob, David, and Solomon in the Bible. Alternatively, this could be a case of graded absolutism.

Betrothal (erusin), which is merely a binding promise to get married, is distinct from marriage itself (nissu'in), with the time between these events varying substantially. Since a wife was regarded as property in biblical times, the betrothal (erusin) was effected simply by purchasing her from her father (or guardian) (i.e. paying the bride price to the woman and her father); the woman's consent is not explicitly required by any biblical law. Nonetheless, in one Biblical story, Rebecca was asked whether she agreed to be married before the marriage took place. Additionally, according to French anthropologist Philippe Rospabé, the payment of the bride price does not entail the purchase of a woman, as was thought in the early twentieth century. Instead, it is a purely symbolic gesture acknowledging (but never paying off) the husband's permanent debt to the wife's parents.

Like the adjacent Arabic culture (in the pre-Islamic period), the act of marriage appears mainly to have consisted of the groom fetching the bride, although among the Israelites the procession was a festive occasion, accompanied by music, dancing, and lights. To celebrate the marriage, week-long feasts were sometimes held.

In Old Testament times, a wife was submissive to her husband, which may be interpreted as Israelite society viewing wives as the chattel of husbands.