Betroth
Betrothal in the ancient Israelite context was a formal legal agreement to marry, far more binding than a modern engagement and carrying near the full legal weight of marriage itself. The betrothal typically occurred a year or more before the actual wedding ceremony and cohabitation. A betrothed woman was legally considered a wife: violation of her by another man was treated as adultery, and if a man died after betrothal, his intended was considered a widow. The betrothal was solemnized through a formal declaration and usually accompanied by a bride price paid to the woman's family.
The Mosaic law addressed betrothal with specific regulations distinguishing between violations of betrothed women in city and country settings. Joseph's intention to divorce Mary quietly when he discovered her pregnancy reflects the legal seriousness of their betrothal, since breaking a betrothal required a formal certificate of divorce. The language of betrothal carries rich theological weight in the Old Testament prophets, where God declares to Israel: I will betroth you to me forever; I will betroth you in righteousness and justice, in steadfast love and mercy—making the covenant relationship between God and his people a marriage entered through divine initiative and faithfulness.