And the children of Israel - Here begins the narrative of what really did happen "after the death of Joshua," but of which Judg. 1 conveys no hint. Israel served the Lord all the days of Joshua Judges 2:7. But when Joshua was dead "the children of Israel did evil in the sight of the Lord, and served Baalim, and forsook the God of their fathers." And then follows from Judges 2:14 to the end of the chapter, a summary of the whole contents of the book.
Did evil in the sight of the Lord - Through this book and all the historical books, this is the regular phrase for falling into idolatry. It occurs seven times in Judges, as descriptive of the seven apostasies of Israel, which drew down upon them the seven servitudes under
(1) Chushan-Rishathaim,
(2) Eglon,
(3) Jabin,
(4) Midian,
(5) the tyranny of Abimelech,
(6) the Ammonites,
(7) the Philistines.
The recurrence of the phrase marks the hand of one author and of one book. For the opposite phrase, see 1-Kings 15:5, 1-Kings 15:11, etc.
The plural of Baal, "Baalim," refers to the numerous images of Baal which they set up and worshipped, as does the plural form, "Ashtaroth" Judges 2:13, to those of the female divinity, Astarte.

Served Baalim - The word בעלים baalim signifies lords. Their false gods they considered supernatural rulers or governors, each having his peculiar district and office; but when they wished to express a particular בעל baal, they generally added some particular epithet, as Baal-zephon, Baal-peor, Baal-zehub, Baal-shamayim, etc., as Calmet has well observed. The two former were adored by the Moabites; Baal-zebub by the Ekronites. Baal-berith was honored at Shechem; and Baal-shamayim, the lord or ruler of the heavens, was adored among the Phoenicians, Syrians, Chaldeans, etc. And whenever the word baal is used without an epithet, this is the god that is intended; and probably, among all these people, it meant the sun.

And the children of Israel did evil in the sight of the LORD, and served (e) Baalim:
(e) That is, all manner of idols.

And the children of Israel did evil in the sight of the Lord,.... Openly and publicly, boldly and impudently, in the very face of God, and amidst all the good things they received from him, which were aggravating circumstances of their sins; what the evil was they did is next observed:
and served Baalim; the idol Baal, as the Arabic version, of which there were many, and therefore a plural word is used; to which the apostle refers 1-Corinthians 8:5; for the word signifies "lords", and there were Baalpeor, Baalzebub, Baalberith, &c. and who seem to have their name from Bal, Bel, or Belus, a king of Babylon after Nimrod, and who was the first monarch that was deified, the Jupiter of the Heathens. Theophilus of Antioch (p) says, that, according to the history of Thallus, Belus the king of the Assyrians, whom they worshipped, was older than the Trojan war three hundred twenty two years; and that some call Cronus or Saturn Bel and Bal; by the Assyrians called Bel, and in the Punic or Phoenician language Bal (q).
(p) Ad Autolyc. l. 3. p. 138, 139. Vid. Lactant. de fals. Relig. l. 1. c. 23. (q) Servius in Virgil. Aeneid. 1. prope finem.

WICKEDNESS OF THE NEW GENERATION AFTER JOSHUA. (Judges 2:11-19)
the children of Israel did evil in the sight of the Lord--This chapter, together with the first eight verses of the next [Judges. 2:11-3:8], contains a brief but comprehensive summary of the principles developed in the following history. An attentive consideration of them, therefore, is of the greatest importance to a right understanding of the strange and varying phases of Israelitish history, from the death of Joshua till the establishment of the monarchy.
served Baalim--The plural is used to include all the gods of the country.

Repeated Falling Away of the People from the Lord. - Judges 2:11-13. The Israelites did what was evil in the eyes of the Lord (what was displeasing to the Lord); they served Baalim. The plural Baalim is a general term employed to denote all false deities, and is synonymous with the expression "other gods" in the clause "other gods of the gods of the nations round about them" (the Israelites). This use of the term Baalim arose from the fact that Baal was the chief male deity of the Canaanites and all the nations of Hither Asia, and was simply worshipped by the different nations with peculiar modifications, and therefore designated by various distinctive epithets. In Judges 2:12 this apostasy is more minutely described as forsaking Jehovah the God of their fathers, to whom they were indebted for the greatest blessing, viz., their deliverance out of Egypt, and following other gods of the heathen nations that were round about them (taken verbatim from Deuteronomy 6:14, and Deuteronomy 13:7-8), and worshipping them. In this way they provoked the Lord to anger (cf. Deuteronomy 4:25; Deuteronomy 9:18, etc.).

In the sight - Which notes the heinousness and impudence of their sins, above other peoples; because God's presence was with them, and his eye upon them in a peculiar manner, which also they were not ignorant of, and therefore were guilty of more contempt of God than other people. Baalim - False gods. He useth the plural number, because the gods of the Canaanites, and adjoining nations, which Israel worshipped, were most of them called by the name of Baal.