John 10:5

John 10:5. But a stranger will they not follow, but will flee from him: for they know not the voice of strangers. The ‘stranger' is not one to whom the porter has opened (for the voice of every one who is thus admitted is familiar to all the sheep); he must therefore have entered by some other way, and he is in the fold as ‘a thief and a robber.' No mark of a true shepherd is found in him. He has not entered by the door, and he has not been recognised by the keeper of the door; the sheep do not know his voice; he cannot call them by their names; his object is not their good, but his own spoil and gain. Lead a flock forth he cannot; the sheep flee from him.