How wonderful, O Lord, are the works of your hands!
The heavens declare Your glory,
the arch of the sky displays Your handiwork
In Your love You have given us the power
to behold the beauty of Your world
robed in all its splendor.
The sun and the stars, the valleys and the hills, the rivers and the lakes all disclose Your presence.
The roaring breakers of the sea tell of Your awesome might, the beast of the field and the birds of the air bespeak Your wondrous will.
In your goodness you have made us able to hear the music of the world.  
The voices of the loved ones reveal to us that you are in our midst.
A divine voice sings through all creation.
(Jewish Prayer)

Send Thy peace, O Lord, which is perfect and everlasting, that our souls may radiate peace. 
Send Thy peace, O Lord, that we may think, act, and speak harmoniously. 
Send Thy peace, O Lord, that we may be contented and thankful for Thy bountiful gifts. 
Send Thy peace, O Lord, that amidst our worldly strife we may enjoy thy bliss.
Send Thy peace, O Lord, that we may endure all, tolerate all in the thought of thy grace and mercy. 
Send Thy peace, O Lord, that our lives may become a divine vision, and in Thy light all darkness may vanish. 
Send Thy peace, O Lord, our Father and Mother, that we Thy children on earth may all unite in one family. 
Amen. 
(Sufi Prayer for Peace)

Oh, Supreme Being and Creator,
Teach me how to trust my heart, my mind, my intuition, my inner knowing, the senses of my body, the blessings of my spirit. Teach me to trust these things so that I may enter my Sacred Space and love beyond my fear, and thus Walk in Balance with the passing of each glorious Sun. 
(Lakota Prayer) 

May all beings be peaceful. 
May all beings be happy. 
May all beings be safe. 
May all beings awaken to the light of their true nature. 
May all beings be free.
(Buddhist Metta Prayer of LovingKindness)

Grant us peace. Your most precious gift, O Eternal Source of Peace, and give us the will to proclaim its message to all the peoples of the earth. Bless our country, that it may always be a stronghold of peace, and its advocate among the nations. May contentment reign within its borders, health and happiness within its homes. Strengthen the bonds of friendship among the inhabitants of all lands. And may the love of Your name hallow every home and every heart. Blessed is the Eternal God, the source of Peace. 
(by the Central Conferences of American Rabbis)

Blessed is God who creates us varied and many, needing one another.
Blessed are our traditions, varied and many, requiring each other.
Blessed is our time together.
May it provide nourishment for us and for our world. Amen.
(by RitualWell)

As Wind carries our prayers for Earth and All Life, may respect and love light our way.
May our hearts be filled with compassion for others and for ourselves.
May peace increase on Earth. May it begin with me.
(Tibetan Wind Horse Prayer)

Inspirer of my mind, consoler of my heart, healer of my spirit, Thy presence lifteth me from earth to heaven, Thy words flow as the sacred river, Thy thought riseth as a divine spring, Thy tender feelings waken sympathy in my heart. Beloved Teacher, Thy very being is forgiveness. The clouds of doubt and fear are scattered by Thy piercing glance. All ignorance vanishes in Thy illuminating presence. A new hope is born in my heart by breathing Thy peaceful atmosphere. O inspiring Guide through life’s puzzling ways, in Thee I feel abundance of blessing. Amen.
(Sufi Prayer)

May all I say and all I think
be in harmony with thee,
God within me,
God beyond me,
maker of the trees. 
(Pacific Northwest Coast Chinook Prayer)