Also see Shrines

How do you get Faith? Faith for each virtue is acquired as you build Palaces at each Shrine type. Each palace level grants a certain amount of faith. As the palace levels increase, so do the amount of faith acquired.

As Faith increases in a Virtue, so do the bonuses you and your alliance mates receive.

The Bonuses are based across the board, from Building Durability increased by Honesty, to Combat values of beserkers increased by honour.

However, even if you get 150 level 1 palaces, 1*150 = 150 faith, the bonus value is capped at 100.

1 Faith = .5 bonus, the max bonus is 100, {twice the bonus from research (resource bonus maxes at 50)} 200 faith will give you the max bonus of 100 (stacks with resources bonus)

VirtueType of BonusBonuses
Compassion Mixed Travel speed of Infantry, Scouts, and Cavalry Bonus to base construction speed of all cities
Honesty Mixed Durability of Towers/Buildings and travel speed of siege engines and ships
Honor Offensive Combat Increased Combat Value of Beserks, Mages, Scouts, Knights and Warlocks
Humility Production/Logistics Increased travel speed of carts and merchant ships, increased production speed of Sloops, Frigates and War Galleons
Justice Defensive Combat Increased combat values of City Guards, Ballistas, Sloops and Frigates.
Sacrifice Defensive Combat Increased combat values of Rangers, Guards, Templars, Crossbows and Paladins
Spirituality Barons/Mana Travel speed,claim power, and production speed of barons, increased mana regeneration/hour
Valor Siege Combat Combat Values of Rams, Catapults and War Galleons