Judges 16:9

16:9 Now she had liers-in-wait abiding in the inner chamber. She said to him, The Philistines are on you, Samson. He broke the cords, as a string of tow is broken when it touches the fire. So his strength was not known.
-World English Bible

Other Translation

16:9 Now [there were] men lying in wait, abiding with her in the chamber. And she said unto him, The Philistines [be] upon thee, Samson. And he brake the withs, as a thread of tow is broken when it toucheth the fire. So his strength was not known.
-King James Version