Ezekiel 33:31-33

31So My people come to you as usual, sit before you, and hear your words; but they do not put them into practice. Although they express love with their mouths, their hearts pursue dishonest gain. 32Indeed, you are to them like a singer of love songs with a beautiful voice, who skillfully plays an instrument. They hear your words but do not put them into practice. 33So when it comes to pass—and surely it will come—then they will know that a prophet has been among them.”