Saul’s plan was to surround the house at night, and to have David killed as soon as he came abroad unsuspectingly in the morning.
Related Commentaries of 1 Samuel 19:11
1 Samuel 19:11
11 Saul also sent messengers unto David's house, to watch him, and to slay him in the morning: and Michal David's wife told him, saying, If thou save not thy life to night, to morrow thou shalt be slain.