Judges 16:4-5, 19-20

After this he fell in love with a [Philistine] woman [living] in the Valley of Sorek, whose name was Delilah. So the [five] lords (governors) of the Philistines came to her and said to her, “Persuade him, and see where his great strength lies and [find out] how we may overpower him so that we may bind him to subdue him. And each of us will give you eleven hundred pieces of silver.”

She made Samson sleep on her knees, and she called a man and had him shave off the seven braids of his head. Then she began to abuse Samson, and his strength left him. She said, “The Philistines are upon you, Samson!” And he awoke from his sleep and said, “I will go out as I have time after time and shake myself free.” For Samson did not know that the LORD had departed from him.