Here’s a prayer for peace from the World Council of Churches.
Prayer for Peace
you love justice and you establish peace on earth.
We bring before you the disunity of today's world;
the absurd violence, and the many wars,
which are breaking the courage of the peoples of the world;
human greed and injustice,
which breed hatred and strife.
Send your spirit and renew the face of the earth;
teach us to be compassionate towards the whole human family;
strengthen the will of all those
who fight for justice and for peace,
and give us that peace which the world cannot give.
~ from A Collection of Prayers for Peace, 2004. Posted on the Decade to Overcome Violence website of the World Council of Churches. http://overcomingviolence.org/en/decade-to-overcome-violence/about-dov/international-day-of-prayer-for/resources/prayers-2004.html