Feet washing in the context of "Legalism (theology)"

In Christian theology, "legalism" (or "nomism") is a pejorative term applied by some denominations and sects to the idea that "by doing good works or by obeying the law, a person earns and merits salvation." The term has been criticized by certain Christian traditions, such as Conservative Anabaptists who have said that being a disciple of Jesus means being obedient to New Testament commands (such as the holy kiss, baptism, communion, headcovering, and feet washing), and the same is "crucial evidence that an individual has repented, believed, and yielded to Christ." This view contrasts with the sola fide view.