Judges 16:18
And when Delilah saw that he had told her all his heart, she sent and called for the lords of the Philistines, saying, Come up this once, for he hath shewed me all his heart. Then the lords of the Philistines came up unto her, and brought money in their hand.
This verse belongs to the story of Samson's entanglement with the Philistines, whose idolatrous company corrupted him and darkened his life. His choice of a Philistine wife set him against his divine mission, and obedience would have made his destiny nobler and happier.
Delilah perceived that Samson had finally told her all his heart, disclosing his secret and his deepest thoughts. She immediately sent for the lords of the Philistines, who came with the promised bribe money in hand, ready to use what she had learned to ruin him. Once she knew his secret she called them to come and seize him, and their arrival made him vulnerable. It enabled the next acts of cutting his hair while he slept and testing that his strength was gone.
The verse falls in the account of Samson yielding to temptation, where passion overcame self-control and led to shame, disaster, and death. This stands in contrast to Joseph, who resisted temptation by choosing obedience to God. Samson was so infatuated with Delilah that he disclosed the secret of his strength and betrayed himself into her hands. His sinful indulgence cost him his strength, reputation, and usefulness, while Satan rejoiced that he had been taken captive by sin.
His attachment to the woman separated him from God and led to his ruin. He gave her the love and service due to God, which made his conduct idolatry, and he sacrificed his honor, conscience, and other precious interests to passion. Delilah used his trust and disclosure to betray him, so that through sexual temptation his strength and Israel's defense were handed over to the Philistines.
Delilah is an example of a snare that draws a person away from God and leaves that person's strength diminishing. The account warns that a person can be deceived and destroyed through lust and another person's charms and power, which blind him to danger and to Satan's work. This was illustrated by Cornell, who was blinded by a woman's power, and it calls for distinguishing the love of Christ from fleshly lust. As Samson was shorn of his strength, so people whose long indulgence in appetite leaves them powerless to resist Satan are like him.