Gaza - About 8 hours from Eleutheropolis, and one of the chief strong-holds of the Philistines.

Then went Samson to Gaza, and saw there a harlot - The Chaldee, as in the former case, renders the clause thus: Samson saw there a woman, an inn-keeper. Perhaps the word זונה zonah is to be taken here in its double sense; one who keeps a house for the entertainment of travelers, and who also prostitutes her person. Gaza was situated near the Mediterranean Sea, and was one of the most southern cities of Palestine. It has been supposed by some to have derived its name from the treasures deposited there by Cambyses, king of the Persians; because they say Gaza, in Persian, signifies treasure; so Pomponius Mela and others. But it is more likely to be a Hebrew word, and that this city derived its name, עזה azzah, from עזז azaz, to be strong, it being a strong or well fortified place. The Hebrew ע ain in this word is, by the Septuagint, the Arabic, and the Vulgate, rendered G; hence instead of azzah, with a strong guttural breathing, we have Gaza, a name by which this town could not be recognized by an ancient Hebrew.

Then went Samson to (a) Gaza, and saw there an harlot, (b) and went in unto her.
(a) One of the five chief cities of the Philistines.
(b) That is, he lodged with her.

Then went Samson to Gaza,.... One of the five principalities of the Philistines, which was ten miles from Ashkelon, as Sandys (q) says; who also describes (r) it as standing upon an hill environed with valleys, and these again well nigh enclosed with hills, most of them planted with all sorts of delicate fruits; and, according to Bunting (s), forty two miles from Ramathlehi, the place where we last hear of him; see Gill on Amos 1:6, Zephaniah 2:4 what he went hither for is not easy to say; it showed great boldness and courage, after he had made such a slaughter of the Philistines, to venture himself in one of their strongest cities, where he must expect to be exposed to danger; though it is highly probable this was a long time after his last encounter with them:
and saw there an harlot, and went in unto her; the Targum renders it an innkeeper, one that kept a victualling house; so Kimchi, Ben Gersom, and Ben Melech interpret it; into whose house he went for entertainment and lodging, and very probably in the dusk of the evening; and the woman that kept this house might herself be an harlot, or, however, Samson saw one in her house, with whom he was captivated, and went in unto her, or had criminal conversation with her; it seems as if he did not turn in thither with any such wicked design, but on sight of the person was ensnared to commit lewdness with her; and, as Lyra says, there were many hostesses in some places, and so here, who too easily prostituted themselves to their guests.
(q) Travels, l. 3. p. 118. (r) Travels, l. 3. p. 116. (s) Ut supra. (Travels, l. 3. p. 118.)

Hitherto Samson's character has appeared glorious, though uncommon. In this chapter we find him behaving in so wicked a manner, that many question whether or not he were a godly man. But the apostle has determined this, Hebrews 11:32. By adverting to the doctrines and examples of Scripture, the artifices of Satan, the deceitfulness of the human heart, and the methods in which the Lord frequently deals with his people, we may learn useful lessons from this history, at which some needlessly stumble, while others cavil and object. The peculiar time in which Samson lived may account for many things, which, if done in our time, and without the special appointment of Heaven, would be highly criminal. And there might have been in him many exercises of piety, which, if recorded, would have reflected a different light upon his character. Observe Samson's danger. Oh that all who indulge their sensual appetites in drunkenness, or any fleshly lusts, would see themselves thus surrounded, way-laid, and marked for ruin by their spiritual enemies! The faster they sleep, the more secure they feel, the greater their danger. We hope it was with a pious resolution not to return to his sin, that he rose under a fear of the danger he was in. Can I be safe under this guilt? It was bad that he lay down without such checks; but it would have been worse, if he had laid still under them.

SAMSON CARRIES AWAY THE GATES OF GAZA. (Judges 16:1-3)
Gaza--now Guzzah, the capital of the largest of the five Philistine principal cities, about fifteen miles southwest of Ashkelon. The object of this visit to this city is not recorded, and unless he had gone in disguise, it was a perilous exposure of his life in one of the enemy's strongholds. It soon became known that he was there; and it was immediately resolved to secure him. But deeming themselves certain of their prey, the Gazites deferred the execution of their measure till the morning.

His Heroic Deed at Gaza. - Samson went to Gaza in the full consciousness of his superiority in strength to the Philistines, and there went in unto a harlot whom he saw. For Gaza, see Joshua 13:3. אל כּוא is used in the same sense as in Genesis 6:4 and Genesis 38:16. It is not stated in this instance, as in Judges 14:4, that it was of the Lord.

And saw - Going into an house of publick entertainment to refresh himself. He there saw this harlot accidentally; and by giving way to look upon her, was ensnared, Genesis 3:6.