The obvious irony of the Samaritan woman’s statement to Jesus is that she was talking to the Messiah himself. But the other irony is that she was wrong: she’s been standing around talking to the Messiah for a while now, and he is doing anything but explaining.
He is doing quite the opposite, from what I can tell. He asks for physical water, and then says that if she knew who she was talking to she would have asked him for “water” that would create "springs of water" flowing out of her. She asks about where one should worship, and he answers, “in spirit and truth” (Oh... there!). When the disciples come and offer him food, he says that he already has “food” that they don’t know about, because the “fields” are “ripe for harvest.”
Two thousand years later, I think I’m still expecting him to come and explain things to me. But he doesn’t, and maybe that is why it takes me a while to recognize him. Like with the Samaritan woman and with the disciples, he just keeps talking around my questions. From what I can tell of his interactions with these people in Scripture, there’s not really any way they could have figured out the secret hidden meaning from the context. Maybe there are times when you “worship what you do not know,” times when you believe in a Savior even though you are not really sure what you are believing about him.
There seems to be quite a precedent for that kind of faith. I suppose it puts me in good company.
...But I still wish he would come and explain everything to me.