Judges 16:13

And Delilah said unto Samson, Hitherto thou hast mocked me, and told me lies: tell me wherewith thou mightest be bound. And he said unto her, If thou weavest the seven locks of my head with the web.

The seven locks of unshorn hair were the outward sign of the Nazarite condition on which extraordinary strength depended, and that strength was not simply the result of physical build. The verse belongs to a repeated exchange in which Delilah keeps pressing for the secret of how Samson might be bound and he gives a deceptive answer involving weaving the seven locks of his head with the web. The proposed tests showed his answers were false, for he named a supposed way to bind him that failed when tried.

Despite clear evidence that Delilah and the Philistines were trying to destroy him, Samson continued to trust her. He was so blinded and infatuated by her charms that he could not discern Satan's power working to deceive and destroy him. Lust blinded him to that power to deceive, and through a woman's influence he was being deceived and destroyed.

Samson could choose right or wrong and had the same source of strength available as Joseph, but he let his passions rule instead of relying on God. He confused lust of the flesh with the love of Christ. His devotion and service belonged to God, but he gave them to a woman whose influence separated him from God, so his conduct was idolatry and led to his ruin.

Through sexual enticement and sinful indulgence he yielded and betrayed the secret of his strength into the hands of the Philistines. That strength had been a defense for Israel, but he sacrificed strength, reputation, and usefulness. His chosen path led to shame, disaster, and death. His fall warns that self-confidence and failure to guard the affections leave a person vulnerable to temptation and deception, since lust can blind a person to Satan's power to deceive. The verse applies as a warning that a wife can become a snare like Delilah when she draws a man away from God, and yielding to that influence draws him farther from God, diminishes his strength, and illustrates how a person is deceived and destroyed through a woman's influence.