One person can make a difference

Sometimes we think that we can't make any difference in the world because we are just one small person.  Yet twice in Amos 7, the Lord relented from the destruction He planned because of the prayer of Amos.  Amos 7:2b-3 (NIV)

I cried out, “Sovereign Lord, forgive! How can Jacob survive? He is so small!”  So the Lord relented.  “This will not happen,” the Lord said.

My prayers can make a difference.  I can't change the world, but through prayer I can ask God to change the world around me.