Gates of Heaven

{t}: Add {w}{w}{w}. Use this ability only if your
devotion to white is at least 7 and greater than
your devotion to any other color. You cannot cast
black spells. You and permanents you control
have protection from black.
"And I will give you the keys of the kingdom of
heaven, and whatever you bind on earth will be
bound in heaven, and whatever you loose on earth
will be loosed in heaven."
—Matthew 16:19