Why would she write this?

Hello, I have two housekeepers that come every 2 weeks, a mother and daughter. They are both Christian and are like family to me now since they have been coming to my apartment for a year now. On their last visit a couple weeks ago, they left a few gifts on my bed (a candle, perfume and thermos) and their business card. It was so sweet, I texted the daughter thank you for the gifts. Well tonight I was cleaning up my counter and moved the business card and when I did I noticed that on the back she wrote "Thank you Provers 24:34". I immediately looked it up considering that this could be a word of the Lord for me, especially since I am going through a rough situation. I was really taken back by this verse. Why would she write this? It has me very confused and uneasy.