What reward does he give to those who respond to his appeal?

O sons of God, For your brethren {brothers} who live in the east. territory of Romania [the Greek em-pire] as far west as the shore of the Mediterranean and the Hellespont, people of whatever rank, foot-soldiers and knights, poor and rich,to carry aid promptly to those Christians and to destroy that vile {disgusting} race from the lands of our friends... Moreover, Christ commands it.” All who die by the way, whether by land or by sea, or in battle against the pagans, shall have immediate remission {forgiveness} of sins.

all

explanation:

the government paid religious orders to provide basic education to native american children on reservations. in the late 19th and early 20th centuries, the bureau of indian affairs (bia) founded additional boarding schools based on the assimilation model of the off-reservation carlisle indian industrial school.