This prayer is attributed to Chief Sealth (for whom Seattle is named). It is not written as a Christian prayer but I think that the sentiments expressed in it could easily be.
We belong to the earth this we know
The earth does not belong to us;
We belong to the earth , this we know
All things are connected like the blood which unites one family.
All things are connected.
Whatever befalls the earth befalls the sons and daughters of the earth.
We did not weave the web of life;
We are merely a strand in it.
Whatever we do to the web, we do to ourselves.