'Ambush' in the Bible

Saul came to the city of Amalek and set an ambush in the valley.

For all of you have conspired against me so that there is no one who discloses to me when my son makes a covenant with the son of Jesse, and there is none of you who is sorry for me or discloses to me that my son has stirred up my servant against me to lie in ambush, as it is this day.”

Saul then said to him, “Why have you and the son of Jesse conspired against me, in that you have given him bread and a sword and have inquired of God for him, so that he would rise up against me by lying in ambush as it is this day?”