But ye believe not, because ye are not of my sheep.
My sheep hear my voice, and I know them, and they follow me:
When he hath put forth all his own, he goeth before them, and the sheep follow him: for they know his voice.
All that which the Father giveth me shall come unto me; and him that cometh to me I will in no wise cast out.
And he said, For this cause have I said unto you, that no man can come unto me, except it be given unto him of the Father.
He that is of God heareth the words of God: for this cause ye hear them not, because ye are not of God.
We are of God: he that knoweth God heareth us; he who is not of God heareth us not. By this we know the spirit of truth, and the spirit of error.