Final answer:
In John 4:20, the Samaritan woman says that Jerusalem is the place where one ought to worship. However, Jesus explains that true worship is not limited to a specific location.
Step-by-step explanation:
In John 4:20, it is the Samaritan woman who says that Jerusalem is the place where one ought to worship. This conversation takes place between Jesus and the Samaritan woman at Jacob's well. The woman mentions that her ancestors worshiped on a mountain, while the Jews claim that Jerusalem is the place where one should worship. Jesus then explains that true worship is not limited to a specific location, but is about worshiping God in spirit and truth.