Who knows if my memory is accurate. As my five year old constantly reminds me, I "forget a lot of things". Regardless if that is exactly how I came into possession of this cup, the sentiment is the same: it was a gift.
When I use this cup, I am reminded that at some point in my life I had friends who felt like the verse it contains fit me well enough for them to spend their money on it. And that makes me feel good.