4:22. Jesus spoke now as a Jew, and presented a contrast between the intelligent worship of the Jews and the (at least in part) ignorant worship of the Samaritans. The latter rejected all the revelation in the Old Testament except that of the Pentateuch; the Jews accepted the entire Old Canon; thus, Jesus is able to say that we (Jews) worship what we know, while you Samaritans worship what you do not know (because you reject so much of the content of divine revelation in the Scriptures). Further,
John 4:22