Thematic Bible: Betrothed to david by saul

Saul told David, "Here is my oldest daughter Merab. I'll give her to you as a wife, if you will be a warrior for me and fight the Lord's battles." But Saul was thinking, "My hand doesn't need to be against him; let the hand of the Philistines be against him." Then David responded, "Who am I, and what is my family or my father's clan in Israel that I should become the king's son-in-law?"