John 4:22

22. Ye worship ye know not what Ye worship; ye, in fact, worship God; but ye know not what is the true character of the God ye worship. It is a factitious, narrow, Samaritan deity you adore, standing in supposed special covenant relations to you, which relations are historically and really untrue. So that even if, through its ignorant sincerity, your prayer reaches through the mists and darkness to the true God, that true God which you thus successfully worship, ye do not truly know.

We know what we worship The God worshipped by the Jews was the God of the Pentateuch and the prophets, standing truly in the historical relations in which the true Jews believed.

Salvation is of Rather from the Jews. For theirs was the covenanted and prophesied Christ, in whom salvation is embodied. And even if that salvation went forth to save the pious Samaritan in his twilight, it truly went forth from the Jews.