The Mashpee Wampanoag Timeline
There would be no need to spend funds on more weapons and war and less chance that the fledgling Massachusetts Bay and Plimoth Bay colonies would be effected by the loss of English lives; if lost, those lives would translate to a loss of the labor pool and local businesses. Further, any chance of attracting more investors and potential settlers to the area would be dashed if war were to break out early on between the Wampanoag and settlers.
1655 John Eliot translates the King James version of the Old Testament and reports in his diary that there are too many problems with his translations. He had employed John Sassamon; a Wampanoag man who would become his protégé. Sassamon is killed and then his next consultant Joel Neesum, another Wampanoag man, dies. Eliot then works with two of the Wampanoag students of the newly formed Indian College, Iacoomes and Cheehsahtyamuk, in order to translate the Holy Bible. This would accomplish two tasks at the same time; translation of the religious materials necessary for conversion to Christianity and have the added bonus of good PR for the purpose of gaining more funding from England via the Indian college.