Know God is Love and be Joyful. That is what I believe the communication IS.
Then it gets complicated. Love whom? And be joyful about what exactly?
So people KNOW the message but choose to ignore it or put it in second place to their own desire.
I'm thinking of the illustration of the vineyard that was let out to the cultivators. They knew the produce was not theirs. (Let us kill the heir they agreed among themselves so the vineyard will be ours.) But they do not know what to do with the grapes of the vine except to misuse them. What does wine signify? Happy contentment perhaps? So then who is keeping happy contentment away from people? The selfish cultivators are. Is the vineyard real? I think so. Are the cultivators real? I guess so. Is there anyone who knows how to distribute the product of the vineyard? I believe so.