C. F. Keil and Franz Delitzsch on Judges 14:17

Jdg 14:17

“Thus his wife wept before him the seven days of the banquet.” This statement is not at variance with that in Jdg 14:15, to the effect that it was only on the seventh day that the Philistine young men urged her with threats to entice Samson to tell the riddle, but may be explained very simply in the following manner. The woman had already come to Samson every day with her entreaties from simple curiosity; but Samson resisted them until the seventh day, when she became more urgent than ever, in consequence of this threat on the part of the Philistines. And “Samson showed it to her, because she lay sore upon him;” whereupon she immediately betrayed it to her countrymen.