This is the same peace that is to rule in our hearts. And this peace, this peaceful government shall be established and upheld with justice and righteousness. Since we are the called people of God, then the peace that is to be ruling in our hearts, should also increase the peaceful nature of our family life, our workplace, and every other place where we come in contact with one another. Think about it. All the troubles we have in the world are because we don't truly love one another, and because we are not at peace with one another.
Most people think that love and peace are optional.
They are not. They are mandatory. Do you remember the story of the time that Jesus was sleeping in the boat with His disciples during bad weather, and the disciples were afraid they would drown. The wind died down and everything became perfectly still. We are told to let peace rule in our hearts, and if we look at the world around us, what we really see ruling in our hearts is violence.