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But if the man does not wish to take his brother's wife, the brother's wife shall go up to the gate, to the elders, and say, "My husband's brother has refused to perpetuate his brother's name in Israel he does not wish to perform the obligation of a husband's brother with me." Then the elders of his city shall call him and speak to him, and he shall stand up and say, "I do not wish to take her." Then his brother's wife shall approach him before the eyes of the elders and remove his shoe from his foot. And she shall spit before his face and declare, "Thus shall be done to the man who will not build up his brother's household! And that family shall be called in Israel 'the household of the one whose shoe has been removed.'" --
What does the ceremony of Chalitzah entail?