The foot-washing aspect of the Passover service is an annual renewal and re-dedication of our baptismal cleansing. Foot-washing was a common practice in antiquity, where the lowest servant was assigned to wash the soiled feet of a weary traveler. A disciple was similarly expected to be willing to perform the same tasks for his rabbi as a servant was for his master—except for untying his sandals, which was considered to be the very lowest of degradations. Jesus Christ, reversing the cultural expectation, took the role of a Gentile slave, and to the shock of his disciples stooped below what a disciple could be expected to do and washed their feet. He modeled the practice of foot-washing to dramatize the need to be submissive to one another, to serve one another—including those who betray—and to be one's brother's keeper, safeguarding our relationships with our brethren.