Much has been made of the final line: "And yet, God has not said a word!" Possibly, the speaker seeks divine condonement for the murder. He may believe God has said nothing because He is satisfied with his actions. God may be satisfied because: He recognises that the persona's crime is the only way to keep Porphyria pure; or, because He doesn't think her life and death are important compared to the persona's. The persona may also be waiting in vain for some sign of God's approval. Alternatively, the line may represent his feelings of emptiness in the wake of his violence; Porphyria is gone, quiet descends, and he's alone. The persona may also be schizophrenic; he may be listening for a voice in his head, which he mistakes for the voice of God. It has also been postulated that this is Browning's statement of "God's silence," in which neither good nor bad acts are immediately recompensed by the deity.