Final answer:
John 4:20 refers to the Samaritan tradition of worshiping on Mount Gerizim, contrasting with the Jewish belief that Jerusalem was the proper place of worship.
Step-by-step explanation:
According to John 4:20, "Our fathers worshipped in this mountain; and ye say, that in Jerusalem is the place where men ought to worship." This passage is part of a conversation between Jesus and a Samaritan woman, highlighting a long-standing debate about the most appropriate place for worship. The "fathers" referred to by the Samaritan woman were the ancestors of the Samaritans who worshipped on Mount Gerizim, while the Jews argued that the proper place for worship was Jerusalem.