If you are one of His sheep, then Jesus is speaking to you and you are hearing His voice! The problem is that we have not learned how to identify His voice (thoughts) and differentiate it from all of the other thoughts that bombard our hearts and minds.
Mark Virkler's teaching on the four keys to hearing God's voice has helped hundreds of thousands of people of every age on every continent clearly and consistently begin to recognize the voice of the Lord within their own hearts. This leads to a deeper intimacy with Jesus as well as greater faith, hope, joy and wholeness.