10. Good deeds done from God, and from self, may be compared with gold. Gold which is gold from its inmost and is called pure gold, is good gold; gold alloyed with silver is also gold, but it is good according to the alloy; while gold alloyed with copper is less good. Gold, however, artificially made and resembling gold only in colour is not good, as the substance of gold is not in it. There is also material gilded with gold; as gilded silver, copper, iron, tin, lead, and also gilded wood and stone, which superficially may also appear as gold; but as they are not gold, they are valued either according to the workmanship, or according to the price of the material gilded, or according to the value of the gold that may be scraped off. These articles differ in goodness from real gold as the garment differs from the man. It is possible also for rotten wood, dross and even dung to be overlaid with gold: such gold may be compared with Pharisaical good.