God's biggest role on earth is to come and purify the human souls. Help the souls achieve purity by vanishing Ego and other vices. Lust, anger, greed, attachment are all embodiments of Ego. Ego is the predominant master of all the vices. Ego-of physical attraction brings lust, lust- when not fulfilled invokes anger, anger is irrational and demanding so it requires more which often invites greed, greed is unwanted accumulation- greed further welcomes attachment because greed is  unnecessary hoarding and attachment is its by-product. And all these vices are generated because of physical bodily consciousness.