He that hateth me ... - To show them that this was no slight crime, he reminds them that a rejection of himself is also a rejection of God. Such is the union between them, that no one can hate the one without also hating the other. See John 5:19-20; John 14:7, John 14:9.
Related Commentaries of John 15:23
John 15:23
23 He that hateth me hateth my Father also.