When the enhancement finished and all the believers had adapted to their newfound strength, he had Afonso write a proclamation for the War of Life and Wisdom against the Holy Church, officially declaring the commencement of the holy war by the God of Life and Wisdom against the Holy God.
The wars between churches of different faiths are called holy wars, a transcendent battle beyond the mundane. Aristocratic lords can choose to participate in the holy wars, or not, and theoretically, they would not be held accountable after the war.
But this is only in theory; in practice, the aristocrats and lords of Dier Province had little room to choose.
Mixing in this little patch of land, they had no possibility to stay out of the affair. The holy war involved all believers, and many knights or soldiers under the lords were believers in the Holy Church. When the Church summoned them to war, if your men went off to fight, how could you, as their lord, stay uninvolved?