Treasure or treasures

Hi. Please tell me whether the treasure that is spoken up in this Bible passage is something valuable as in money or precious stones or something else like rare paintings. I think for rare paintings, we would always refer to them in plural, "treasures," and not in singular terms like "a treasure" or "two treasure" since it is a plural noun like the word "clothes." We wouldn't say or write "a clothes" or "two clothes" since it is a plural noun. Thank you in advance for your help.

In the Bible, Luke 12:34, in the New International Version, it is written:

For where your treasure is, there your heart will be also.