A prophet's duty often goes beyond delivering spoken warnings; sometimes, his very life must become a living display of his message. God commands the prophet to transform his personal existence into a physical representation of the approaching destruction. To achieve this, he is instructed to withdraw from three fundamental aspects of human society: starting a family, participating in mourning rituals, and celebrating at joyous events [אברבנאל].
The demand to abandon such basic religious and social duties—like having children, comforting the grieving, and celebrating with a bride and groom—is naturally puzzling. One perspective suggests that the ban on marriage is a practical measure, intended to protect the prophet's future children from the harsh decree hanging over his hometown [רד״ק]. However, this explanation is challenged. Because the primary focus of the prophecy takes place in Jerusalem, a local danger in his hometown does not fully justify the suspension of so many core duties [אברבנאל].
The primary approach among commentators offers a broader purpose. The prophet's withdrawal from normal life is not driven by personal safety or any inherent flaw in the activities themselves. Instead, his isolation serves as a living parable for the nation. By acting so far outside the norm, he naturally provokes the curiosity of the people in Jerusalem. When they inevitably ask why he is isolating himself, his answers will drive home the harsh reality of the coming judgment. Visible, unusual actions impact the heart far more effectively than words alone [אברבנאל].
Each aspect of his withdrawal carries a precise warning about the future. By remaining unmarried and childless, he illustrates a grim reality: the families in the city will face famine and violence, leaving bodies unburied. His absence from homes of mourning, along with the refusal to provide traditional meals of comfort to the grieving, symbolizes the complete withdrawal of God's mercy and kindness. The upcoming disaster will be so overwhelming and widespread that no one will have the time or ability to properly eulogize the dead or comfort the survivors. Finally, by avoiding banquet halls and wedding celebrations, his life makes it clear that God will soon silence all sounds of joy and gladness from the city.