New Revised Standard Version
While men were lying in wait in an inner chamber, she said to him, “The Philistines are upon you, Samson!” But he snapped the bowstrings, as a strand of fiber snaps when it touches the fire. So the secret of his strength was not known.

New American Bible
She had men lying in wait in the room, and she said to him, “The Philistines are upon you, Samson!” But he snapped the bowstrings as a thread of tow is snapped by a whiff of flame; and his strength remained unexplained.

Douay-Rheims Bible
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.

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.

toucheth.

Psalm 58:9 Before your thorns could know the brier; he swalloweth them up, as alive, in his wrath.