This is from the fourteen mindfulness trainings from Thich Nhat Hanh, also called Thay. You can see them and more related information on the Deer Park Monastery website.
The Tenth Mindfulness Training: Protecting the Sangha
Aware that the essence and aim of a Sangha is the practice of understanding and compassion, I am determined not to use the Buddhist community for personal gain or profit or transform our community into a political instrument. A spiritual community should, however, take a clear stand against oppression and injustice and should strive to change the situation without engaging in partisan conflicts.