Baal-zebub
Baal-zebub is the god of Ekron, a Philistine deity Ahaziah of Samaria sends messengers to consult after a household injury. The episode in 2 Kings 1 supplies the figure's only OT footing, where the name is repeated as a fixed formula — "Baal-zebub, the god of Ekron" — and is set in deliberate contrast with the God of Israel. In the gospel material the related form Beelzebul appears as a title on the lips of Christ's accusers, identified with "the prince of the demons" and, by Christ's own reply, with Satan.
The God Of Ekron
The first appearance is at Samaria, when Ahaziah is hurt and sends to a foreign shrine for an oracle: "And Ahaziah fell down through the lattice in his upper chamber that was in Samaria, and was sick: and he sent messengers, and said to them, Go, inquire of Baal-zebub, the god of Ekron, whether I will recover of this sickness" (2Ki 1:2). The geographic tag — Ekron — fixes him to one of the Philistine cities; the title "the god of Ekron" is repeated in every subsequent verse that names him, never softened, never expanded.
Yahweh's Reproof Through Elijah
Against Ahaziah's inquiry the angel of Yahweh dispatches Elijah with a sharply phrased question: "But the angel of Yahweh said to Elijah the Tishbite, Arise, go up to meet the messengers of the king of Samaria, and say to them, Is it because there is no God in Israel, that you⁺ go to inquire of Baal-zebub, the god of Ekron?" (2Ki 1:3). The contrast is direct — the king's emissaries are intercepted on the road to Ekron and asked, in effect, why a foreign god instead of the one in their own land.
The messengers carry the rebuke back: "And they said to him, A man came up to meet us, and said to us, Go, turn again to the king who sent you⁺, and say to him, Thus says Yahweh, Is it because there is no God in Israel, that you send to inquire of Baal-zebub, the god of Ekron? Therefore you will not come down from the bed where you have gone up, but will surely die" (2Ki 1:6). The same rhetorical question is now joined to a verdict.
Elijah delivers the oracle a third time, this time face-to-face with the king: "And he said to him, Thus says Yahweh, Since you have sent messengers to inquire of Baal-zebub, the god of Ekron, is it because there is no God in Israel to inquire of his word? Therefore you will not come down from the bed where you have gone up, but will surely die" (2Ki 1:16). Across all four occurrences in the chapter the name is paired with the same epithet, and the indictment is consistent: turning to Baal-zebub is treated as a refusal of Yahweh's word.
Beelzebul, Prince Of The Demons
In Mark and Luke the related form Beelzebul surfaces as an accusation against Christ. Mark places the charge on the lips of authorities from the capital: "And the scribes who came down from Jerusalem said, He has Beelzebul, and, By the prince of the demons he casts out the demons" (Mr 3:22). The name is fastened to the title "the prince of the demons" and presented as an explanation for the exorcisms — the charge being that the power behind them is itself demonic.
Luke records the same accusation in another setting: "But some of them said, By Beelzebul the prince of the demons he casts out demons" (Lu 11:15). Again the title accompanies the name, and again it is offered as the rival reading of Christ's exorcisms.
Christ's Reply
Christ's response in Luke turns the charge back on its premises. He first folds Beelzebul into Satan and exposes the inner contradiction: "And if Satan also is divided against himself, how will his kingdom stand? Because you⁺ say that I cast out demons by Beelzebul" (Lu 11:18). In the Lukan reply, the Beelzebul charge and the figure of Satan are treated as one and the same.
Then he poses a counter-question that points to the accusers' own community: "And if I by Beelzebul cast out demons, by whom do your⁺ sons cast them out? Therefore they will be your⁺ judges" (Lu 11:19). The logic is that the same standard the accusers want to apply to Christ would condemn their own exorcists; the verse leaves their judgment in the hands of those they themselves recognize.