Here’s a closing prayer I wrote for the Canadian Foodgrains Bank website.
(based on Psalm 67)
Merciful God, we ask for Your blessing.
Look with kindness on Your gathered people,
that we might reflect Your goodness to the world around us.
Then all of the nations will come to know Your ways
and acknowledge Your saving power.
They will praise You as we praise you now.
For You are a God of justice and compassion,
abundantly providing for the needs of the world.
Bless us, O God, and make us a blessing,
that the whole earth may come to experience
Your abundant goodness. Amen.
~ Christine Longhurst/Canadian Foodgrains Bank http://www.fastforchange.ca/benediction.aspx#closing%20prayer