Judges Chapter 16, Verse 9
From BibleWiki
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.
9: Men lying privately in wait with her, and in the chamber,
expecting the event of the thing, and she cried out to him: The
Philistines are upon thee, Samson. And he broke the bands, as a man
would break a thread of tow twined with spittle, when it smelleth the
fire: so it was not known wherein his strength lay.
9: 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.
Judges Chapter 16, Verse 9/commentary

