Those who have become truly regenerated,
and are new creatures in Christ Jesus
...should be known by their manner of living,
their dealings with ... one another,
by the evils they shun,
the good deeds they do,
and their well-studied efforts to avoid things
that have even the appearance of evil.
Their character and deportment in life,
in the interest of nonconformity,
ought to be well enough defined
to make them as a separate people.
Sources: The Brethren Encyclopedia
and Let Our Joys Be Known