1 Samuel 18:18-23

David said to Saul, “Who am I, and what is my life or my father’s family in Israel, that I should be the king’s son-in-law?” But at the time when Merab, Saul’s daughter, should have been given to David, she was [instead] given to Adriel the Meholathite as a wife. Now Michal, Saul’s daughter, loved David; and when they told Saul, it pleased him. Saul said, “I will give her to him so that she may become a snare (bad influence, source of trouble) to him, and that the hand of the Philistines may be against him.” So Saul said to David for a second time, “You shall be my son-in-law today.” Then Saul commanded his servants, “Speak to David secretly, saying, ‘Listen, the king delights in you, and all his servants love you; now then, become the king’s son-in-law.’ ” So Saul’s servants spoke these words to David. But David said, “Is it a trivial thing in your sight to become a king’s son-in-law, seeing that I am a poor man and insignificant?”