Matthew Poole and continuators on Judges 16:4

¶ 4 And it came to pass afterward, that he loved a woman in the valley of Sorek, whose name was Delilah.

Either, First, with Conjugal Love, so as to Marry her, as divers both Jews and Christians have thought. Or, Secondly, with lustfal Love, as an Harlot: which, though not certain, because the Phrase is here Ambiguous, she being neither called an Harlot, as she of Gaza was, v. 1 Nor yet his Wife, as she of Timnath was, Iudg. 14. 2, 3, 20. yet it may seem more probable; partly, because the dreadful punishment now inflicted upon Sampson for this Sin, whom God spared for the first Offence, is an intimation, that this Sin was not inferior to▪ the former; partly, because the confidence which the Philistine Lords had in her, and their bold and frequent Treating with her, and the whole course of her carriage towards Sampson, shew her to be a mercenary and persidious Harlot, and not a Wife; whose Affection and Interest would have obliged her to better things; and partly, because Sampson did not carry her home to his House, as Husbands use to do with their Wives; but lodged in her House: as appears from the whole Story.

Marginal references: Or, by the brook.