1 Samuel 19:17
And Saul said unto Michal, Why hast thou deceived me so, and sent away mine enemy, that he is escaped? And Michal answered Saul, He said unto me, Let me go; why should I kill thee? And Saul said unto Michal, Why hast thou deceived me so, and sent away mine enemy, that he is escaped? And Michal answered Saul, He said unto me, Let me go; why should I kill thee?
This verse belongs to the account of Saul's jealousy and pursuit of David after the king had openly declared he would take David's life, within the wider story of David's flight and Saul's efforts to kill him. It records Saul accusing Michal of deceiving him and helping his enemy David escape, and Michal answering that David had threatened to kill her if she did not let him go. Michal was Saul's daughter and David's wife, and she loved David and warned him of her father's purpose to kill him and urged him to escape for his life. She let him down from the window so that he fled to Samuel at Naioth, while she placed an effigy in the bed that Saul's men found when they came to David's chamber.
Saul was very angry with his daughter and enraged with disappointment, and was determined that his hated subject should not escape. His course in this account is part of his long wicked career, a striking example of how a once-humble man became tyrannical and hostile to David. He was filled with the same spirit that actuates Satan and, like the first great apostate, was moved by unholy ambition and murderous rage. This reveals how terrible was the fall of the first chosen king of Israel since the day the holy anointing oil was poured upon his head by the prophet of God.
His malice toward David stands in contrast to Eli's kindness toward his successor Samuel, making the chapter an example for learning from how different people behave in comparable circumstances.