Channeling the spirit of the prophet Elijah, who had fearlessly criticized the sinful actions of Ahab and Jezebel (3 Kings 21:21, 23), John confronted Herod, stating: ‘It is not lawful for you to have your brother's wife’ (Mark 6:18). Herod Philip, John’s brother residing in Rome, was legitimately wed to Herodias, but driven by ambition she abandoned her marriage, breaching the law that prohibited a man from marrying his brother's wife while he lived (Deuteronomy 25:5-10), and took Herod Antipas as her spouse. This wicked woman sought to eliminate John for exposing her illicit relationship, but her attempts to persuade Herod only led to John's imprisonment. Herod hesitated to obey the murderous desires of Herodias, fearing retribution from the populace (Matthew 14:5), as he recognized John's character as righteous and holy (Mark 6:20), worrying that John's death might invite divine retribution. Thus, Herod cherished John as a prisoner, honoring him and engaging in various acts of kindness towards him, finding joy in listening to his teachings (v. 20). Such regard for his captive allowed John a degree of freedom even within prison walls, maintaining communication with his disciples, who brought him news of Christ’s ministry, which he in turn relayed to Jesus (Matthew 11:2).
As the Gospel continued to resonate and grow, John the Forerunner and Baptist of Christ ultimately met his demise as a martyr. His condemnation of Herod's sinful union with Herodias incited vengeful feelings in her. Understanding that John's admonitions could lead to the end of her privileged status should Herod heed his counsel, she was determined to eliminate the truth-teller, yet lacked the means to do so independently. Deviously and persistently manipulating her weak-willed, frivolous husband, she managed to sway Herod, who initially regarded John as a righteous and holy figure, into contemplating his sacrifice. Nonetheless, fearing the uproar from the people who revered John as a prophet, Herod delayed the barbaric act; Herodias also awaited her moment to exact revenge.
Herod Antipas had long been aware of Christ’s name and miracles due to the widespread gossip that reached him (Mt. 14:1; Mk. 6:14; Lk. 9:7). Confounded, he inquired, who is this about whom I hear such things (Lk. 9:9)? and speculated whether this Miracle Worker could possibly be John the Baptist raised from the dead, whom he had executed (Mt. 14:2; Mk. 6:14, 16), and he sought a chance to see Him for confirmation (Lk. 9:9).