Son visiting his elderly sick father and father tells son as I am you shall be

I can’t remember what type of movies this was, but a son visits his elderly father in a nursing home or hospital. The father may be suffering from some illness, but he suddenly tells his son something like “As you are I once was, As I am you shall be”. I know this is a popular epitaph, but in the movie, it was a dark room and it seemed like the son had some guilt about his having his father put into this institution.