Judges 16:9-10
16:9 They hid in the bedroom and then she said to him, “The Philistines are here, Samson!” He snapped the bowstrings as easily as a thread of yarn snaps when it is put close to fire. The secret of his strength was not discovered.
16:10 Delilah said to Samson, “Look, you deceived me and told me lies! Now tell me how you can be subdued.”