What you may not know is that God connects disobedience to unbelief and unbelief to sin. Disobedience in the simplest term is "not obeying". To obey assumes instruction was given. God isn't concerned with religious people; they are dull of hearing. He's pleased with righteous people; they're in love with the intimate call of His voice. Embracing the sound of God's voice is a true act of FAITH.