The confrontation between the angry king and the high priest reaches a tragic breaking point. King Saul completely shuts out any possibility of peace or reason, flatly rejecting the priest's defense. To the paranoid king, the priest's honest words are nothing but lies. He refuses to accept the truth of the situation, instead viewing the priest's actions as just another layer of the ongoing plot and rebellion against his rule [ביאור שטיינזלץ, אברבנאל].
Driven by this deep suspicion, Saul passes an absolute death sentence upon Ahimelech and his entire family. The severity of this decree carries a dual weight, reflecting what Saul perceives as a two-fold betrayal. He condemns the priest for committing a sin against God by consulting the divine oracle on David's behalf, as well as a sin against the crown by offering aid to the king's enemy [חומת אנך].
The resulting order to wipe out the entire priestly city of Nob is a deeply disturbing and horrifying event. The sheer magnitude of this tragedy is so overwhelming that it leaves one completely shaken. The horrific nature of the massacre is so profound and difficult to grasp that the most appropriate response to such senseless destruction is simply silence [חומת אנך].