Thanks, mythbuster, i got it now. There are some real turds in here.
First we have an example of King David "grieving" God's Spirit by commiting adultery:
"Grieving the spirit can be the first step
leading to the total loss of the influence of
God’s active force in a Christian’s life. That
this is possible is evident from what David
said after he had sinned in connection with
Bath-sheba.David repentantly begged Jehovah:
“Do not throw me away from before
your face; and your holy spirit O do not
take away from me."
Then we have a most apt example of a brother "grieving" God's Spirit by some "bad music."
"Even in private, we could be tempted to
do something displeasing to God. For instance,
a brother may have been listening to
questionable music. Eventually, his conscience
becomes troubled because of ignoring
Bible counsel presented in publications
of “the faithful and discreet slave.” (Matt.
24:45) He may pray about this problem and
may recall Paul’s words recorded at Ephesians
4:30. Firmly determined to do nothing
thatwould grieveGod’s spirit, he resolves to
avoid questionable music from now on.
Jehovah will bless the spirit the brother
shows. Therefore, let us constantly guard
against grieving God’s spirit."
The juxtaposition of those two examples is amazing. If it takes King David till after he screwed Bathsheeba to be afraid of losing God's spirit, I don't think listening to "bad music" is high on God's radar of offensive behavior.