Judges 16:9

Now she had men lying in wait in her chamber. Then she said to him, The Philistines are upon thee, Sampson. Upon which he broke the thongs, as one would break a thread of tow, when it is touched with fire. So his strength was not known.

And the liers in wait remained with her in the chamber; and she said to him, The Philistines are upon thee, Sampson: and he broke the cords as if any one should break a thread of tow when it has touched the fire, and his strength was not known.