God is not about his worship.
It's not about his praise, his glory, or his righteousness.
God is not about religion.
It's not about his followers, or some obscure messages from a book which claims to be his word.
It's certainly not about spreading his message through crappy wallpaper.
God is about how we live our lives. We choose to live good or bad, in anger or in peace, with open minds or closed. Our ways affect others not through our voice, but through our actions. Our god is our world by our choices.
A Psalm on wallpaper does not spread the voice of God. It only has meaning to those who already believe what you believe.
Don't talk about God.
Let your actions be the voice of god.