I Samuel 19:10-16 (NKJV)
[10] Then
Saul sought to pin David to the wall with the spear, but he slipped away from
Saul’s presence; and he drove the spear into the wall. So David fled and
escaped that night.
[11] Saul also sent messengers to David’s house to watch
him and to kill him in the morning. And Michal, David’s wife,
told him, saying, “If you do not save your life tonight, tomorrow you will be
killed.” [12] So Michal let David down through a window. And he went and fled and escaped.
[13] And Michal took an image and laid it in the bed, put a cover of goats’ hair for his head, and covered it with clothes.
[14] So when Saul sent messengers to take David, she said, “He is sick.”
[15] Then Saul sent the messengers back to see David, saying, “Bring him up to me in the bed, that I may kill him.”
[16] And when the messengers had come in, there was the image in the bed, with a cover of goats’ hair for his head.