They are in deep trouble, still, if they "merely" kept the big list by deed. The New Testament standard of holiness is impossible for corruptible man, this the reason we are clothe in His righteous, or filthy rags, nothing in-between. The New Testament standard makes the legalists that much more absurd, because a black speck in your heart and mind are sin, such things a daily occurrence only the self righteous do not acknowledge.