The correct answer to this open question is the following.
Cotton said that God would do for the foreign people when they arrive in the new land was that God would help the Puritans by casting out the former inhabitants of the new land. Let's have in mind that the North American territories were already inhabited by many Native American Indian tribes that considered those territories as their lands, inherited by the ancestors.
John Cotton was one of the Puritan leaders that traveled to North America trying to find a new place to live and practice their strict religious teachings. He preached his people that God was going to help them settle in the new land and convince former inhabitants to accept the English Colonists.
