Peter Leithart, in Against Christianity (p 89), writes
… Calvin was fatally wrong in suggesting that [the Roman Church’s] Galatianism was found wherever there is an emphasis on ritual per se. Calvin notwithstanding, the redemptive-historical move that the New Testament announces is not from ritual to non-ritual, from an Old Covenant economy of signs to a New Covenant economy beyond signs. The movement instead is from rituals and signs of distance and exclusion (the temple veil, cutting of the flesh, sacrificial smoke ascending to heaven, laws of cleanliness) to signs and rituals of inclusion and incorporation (the rent veil, the common baptismal bath, the common meal)…. Rituals are as essential to the New Covenant order as to the Old; they are simply different rituals.