Native American (Apache)
Here is the blessing of the Apaches used in wedding ceremonies:

May the sun bring you new happiness by day; 

May the moon softly restore you by night;
May the rain wash away your worries
And the breeze blow new strength into your being,
And all the days of your life
May you walk gently through the world and know its beauty.

"Now you will feel no rain, for each of you will be shelter for the other. Now you will feel no cold, for each of you will be warmth to the other. Now there will be no loneliness, for each of you will be companion to the other. Now you are two persons, but there is only one life before you. May beauty surround you both in the journey ahead and through all the years. May happiness be your companion and your days together be good and long upon the earth."

"Treat yourselves and each other with respect, and remind yourselves often of what brought you together. Give the highest priority to the tenderness, gentleness and kindness that your connection deserves. When frustration, difficulties and fear assail your relationship, as they threaten all relationships at one time or another, remember to focus on what is right between you, not only the part which seems wrong. In this way, you can ride out the storms when clouds hide the face of the sun in your lives -- remembering that even if you lose sight of it for a moment, the sun is still there. And if each of you takes responsibility for the quality of your life together, it will be marked by abundance and delight."