See 1 Kings 16:33. The great sin of Ahab - that by which he differed from all his predecessors, and exceeded them in wickedness - was his introduction of the worship of Baal, consequent upon his marriage with Jezebel, and his formal establishment of this gross and palpable idolatry as the religion of the state.

And Ahab the son of Omri did evil in the sight of the Lord, above all that were before him. Adding other idols to the calves, and those more abominable than they; since the other kings pretended to worship God in them, but he worshipped other gods besides him, as the following verses show.

Whereas the former kings of Israel had only perpetuated the sin of Jeroboam, i.e., the calf-worship. or worship of Jehovah under the image of an ox, which he had introduced, Ahab was not satisfied with this. לכתּו הנקל ויהי, "it came to pass, was it too little?" i.e., because it was too little (cf. Ewald, 362, a.) to walk in the sins of Jeroboam, that he took as his wife Jezebel, the daughter of Ethbaal the king of the Sidonians, and served Baal, and worshipped him. ויּלך before ויּעבד, "he went and served," is a pictorial description of what took place, to give greater prominence to the new turn of affairs. אתבּעל .sri (i.e., with Baal) is the Εἰθώβαλος (בּעל אתּו or Ἰθόβαλος: Jos. Ant. viii. 13, 1) mentioned by Menander in Josephus, c. Ap. i. 18, who was king of Tyre and Sidon, and priest of Astarte, and who usurped the throne after the murder of his brother, king Pheles, and reigned thirty-two years. Jezebel (איזבל, i.e., probably without cohabitation, cf. Genesis 30:20, equals untouched, chaste; not a contraction of אביזבל, as Ewald, 273, b., supposes) was therefore, as tyrant and murderess of the prophets, a worthy daughter of her father, the idolatrous priest and regicide. Baal (always הבּעל with the article, the Baal, i.e., Lord κατ ̓ ἐξοχήν) was the principal male deity of the Phoenicians and Canaanites, and generally of the western Asiatics, called by the Babylonians בּל equals בּעל (Isaiah 46:1), Βῆλος, and as the sun-god was worshipped as the supporter and first principle of psychical life and of the generative and reproductive power of nature (see at Judges 2:13). Ahab erected an altar to this deity הבּעל בּית, in the house (temple) of Baal, which he had built at Samaria. The worship of Baal had its principal seat in Tyre, where Hiram, the contemporary of David and Solomon, had built for it a splendid temple and placed a golden pillar (χρυσοῦν κίονα) therein, according to Dius and Menander, in Joseph. Ant. viii. 5, 3, and c. Ap. i. 18. Ahab also erected a similar pillar (מצּבה) to Baal in his temple at Samaria (vid., 2 Kings 3:2; 2 Kings 10:27). For statues of images of Baal are not met with in the earlier times; and the בּעלים are not statues of Baal, but different modifications of that deity. It was only in the later temple of Baal or Hercules at Tyre that there was, as Cicero observes (Verr. iv. 43), ex aere simulacrum ipsius Herculis, quo non facile quidquam dixerim me vidisse pulcrius.

And Ahab the son of Omri did evil in the sight of the LORD above all that were before him.

16:29-34 Ahab did evil above all that reigned before him, and did it with a particular enmity both against Jehovah and Israel. He was not satisfied with breaking the second commandment by image-worship, he broke the first by worshipping other gods: making light of lesser sins makes way for greater. Marriages with daring offenders also imbolden in wickedness, and hurry men on to the greatest excesses. One of Ahab's subjects, following the example of his presumption, ventured to build Jericho. Like Achan, he meddled with the accursed thing; turned that to his own use, which was devoted to God's honour: he began to build, in defiance of the curse well devoted to God's honour: he began to build, in defiance of the curse well known in Israel; but none ever hardened his heart against God, and prospered. Let the reading of this chapter cause us to mark the dreadful end of all the workers of iniquity. And what does the history of all ungodly men furnish, what ever rank or situation they move in, but sad examples of the same?