Treasure (from Greek θησαυρός - thēsauros, meaning "treasure store", romanized as thesaurus) is a concentration of riches, often one which is considered lost or forgotten until being rediscovered. Some jurisdictions legally define what constitutes treasure, such as in the British Treasure Act 1996.The Gospel of Matthew defines Treasure as the focus of one's heart and warns of focus on Worldly Treasure. "Do not lay up for yourselves treasures on earth, where moth and rust destroy and where thieves break in and steal; but lay up for yourselves treasures in heaven, where neither moth nor rust destroys and where thieves do not break in and steal. For where your treasure is, there your heart will be also." Mathew 6: 19 - 21.The phrase "blood and treasure" or "lives and treasure" has been used to refer to the human and monetary costs associated with massive endeavours such as war that expend both.