Bathsheba
Bathsheba, daughter of Eliam and wife of Uriah the Hittite, became the central figure in David's most serious moral failure. Her beauty, observed from the palace roof, led David to commit adultery with her while Uriah was on military campaign (2 Sam. 11:2-4). When she became pregnant, David arranged Uriah's death in battle to conceal the sin — a sequence of adultery and murder that the prophet Nathan confronted with the parable of a rich man who stole a poor man's single ewe lamb (2 Sam. 12:1-12). God's judgment through Nathan was direct: the sword would not depart from David's house, and the child of the adulterous union would die.
After the child's death, David married Bathsheba; their son Solomon was the one whom God declared he would love and establish (2 Sam. 12:24-25). Bathsheba exercised decisive political agency in David's final days, working with Nathan to secure Solomon's succession over Adonijah (1 Kings 1:11-31). As queen mother under Solomon, she continued to function as an intercessor and political figure (1 Kings 2:13-21). She is included by Matthew in the genealogy of Jesus as 'the wife of Uriah' (Matt. 1:6) — one of four women in the genealogy, each marking a place where God's grace overrode scandal to advance his purposes.