And having lulled him to sleep on her lap, she called a man to shave off the seven braids of his head. In this way she began to subdue him, and his strength left him.

Judges 16:18
When Delilah realized that he had revealed to her all that was in his heart, she sent this message to the lords of the Philistines: "Come up once more, for he has revealed to me all that is in his heart." Then the lords of the Philistines came to her, bringing the money in their hands.

Judges 16:20
Then she called out, "Samson, the Philistines are here!" When Samson awoke from his sleep, he thought, "I will escape as I did before and shake myself free." But he did not know that the LORD had departed from him.

And she made him sleep on her knees; and she called for a man, and she caused him to shave off the seven locks of his head; and she began to afflict him, and his strength went from him.