Why did Atiwaneto publicly berate Phineas Stevens in 1752 as noted in the nonfiction book, The World Turned Upside Down: Indian Voices from Early America?

Atiwaneto, an Abenaki Indian, berated Phineas Stevens in 1752 for Massachusetts' characterization of the Abenaki as a bad people. He also forbade any colonists from encroaching further on Abenaki land.