Poole's Outline of 1 Samuel 18: Saul's Jealousy Rising
Jonathan loveth David; they covenant together, 1-4. Saul envieth David’s praise; in his fury seeketh to kill him, 5-11: is afraid of him; and removeth him: he is loved by the people, 12-16. Saul offereth David his daughters; first Merab, who is given to Adriel; then Michal, who loveth David, 17-20. Saul demandeth one hundred foreskins of the Philistines for a dowry: David promiseth; delivereth double the number; obtaineth Michal, 21-27. Saul’s fear and hatred, and David’s glory, increaseth, 28-30.