Every human activity could either be categorized as right or wrong, unclean or clean, good or evil, righteous or unrighteosu, and investments in the financial markets should not be execemptions. God expects spiritual leaders to teach His people to distinguish between biblically right and wrong behaviours. He says, through the prophet Ezekiel: "They shall teach My people the difference between the holy and the unholy, and cause them to discern between the unclean and the clean" (Ezekiel 44:23, emphasis added throughout). What are holy and unholy or cleand and unclean investment behaviours?