Christian denominations have a variety of beliefs about sexual orientation, including beliefs about same-sex sexual practices and asexuality. Denominations differ in the way they treat lesbian, bisexual, and gay people; variously, such people may be barred from membership, accepted as laity, or ordained as clergy, depending on the denomination. As asexuality is relatively new to public discourse, few Christian denominations discuss it. Asexuality may be considered the lack of a sexual orientation, or one of the four variations thereof, alongside heterosexuality, homosexuality, and bisexuality.
Following the lead of Yale scholar John Boswell, it has been argued that a number of early Christians (such as Saints Sergius and Bacchus) entered into homosexual relationships, and that certain Biblical figures had homosexual relationships, despite Biblical injunctions against sexual relationships between members of the same sex. Examples cited are Ruth and her mother-in-law Naomi, Daniel and the court official Ashpenaz, and, most famously, David and King Saul's son Jonathan.
The story of David and Jonathan has been described as "biblical Judeo-Christianity's most influential justification of homoerotic love". The relationship between David and Jonathan is mainly covered in the Old Testament First Book of Samuel, as part of the story of David's ascent to power. The mainstream view found in modern biblical exegesis argues that the relationship between the two is merely a close platonic friendship. However, a few have interpreted the love between David and Jonathan as romantic or sexual. Although David was married (to many women), he articulates a distinction between his relationship with Jonathan and the bonds he shares with women.