'Ambush' in the Bible

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

That’s why all of you have conspired against me! Nobody tells me when my own son makes a covenant with Jesse’s son. None of you cares about me or tells me that my son has stirred up my own servant to wait in ambush for me, as is the case today.”

Saul asked him, “Why did you and Jesse’s son conspire against me? You gave him bread and a sword and inquired of God for him, so he could rise up against me and wait in ambush, as is the case today.”