Fable 2 Guide - Donating to the Light
You can now pay a visit to the Temple of the Light regularly to make donations in return for positive points. The most sensible course of action is to donate 1,000 gold at a time, giving you 25 good and 25 purity points each time. Donate 500 gold in total and then one more upon the monks' request between midday and 1 pm to earn the title of Harvest Benefactor and attaining the weapon The Rising Sun. You need to donate over 10,000 gold in the one go for this, so one for the future perhaps.
With that in mind, travel to the Chamber of Fate via fast travel or using the Cullis Gate on top of Bower Lake Hill as the first step on the next mammoth quest, The Hero of Will.