The Good Shepherd's sheep hear his voice. Do you?

But even if I do judge, my judgment is true for I AM NOT ALONE, but I AND the Father who sent me. Even in your law it has been written that the testimony of TWO men is true.... He who sent me is true and the things WHICH I HEARD FROM HIM, THESE I SPEAK to the world...I do nothing from myself, but I SPEAK THESE THINGS AS THE FATHER TAUGHT ME.... He has NOT LEFT ME ALONE.... I SPEAK THE THINGS WHICH I HAVE SEEN WITH MY FATHER, therefore you also do the things which you heard from your father.... He who is of God hears the words OF GOD...

Did Jesus not make himself clear enough? Whose words did he say he is speaking?