KJV
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.
BSB
While the men were hidden in her room, she called out, “Samson, the Philistines are here!” But he snapped the bowstrings like a strand of yarn seared by a flame. So the source of his strength remained unknown.