TONGUE

Sharp is my tongue.
Sometimes it's wrong!
Biting and strong,
it doesn't belong
to a text in a song.
It can also be right.
Its audacious insight
could profoundly ignite
feeling gentle, or bright
in the day or at night.
On occasion it's met
with injustice or dread.
Then, its angry and red
and could knock you out - dead,
or revive you instead.
It is sure as a rule,
it's a powerful tool -
could be cool, or cruel,
if given some fuel
by a sage or a fool!