"Owe no one anything, except to love one another; for the one who loves another has fulfilled the law." (Romans 13:8)

That's how Paul sums it up in one of his letters. The command to love is specifically addressed to the Christian congregation. It's about how we must treat each other. The congregation is called to do just this one thing - to love each other. Everything else flows from that.

The love that Paul is writing about is nothing to do with the sentimental, romantic love of popular culture. It's the love that Christians owe each other in the day to day life of the new community that God is making of them.

And in the case of the Corinthian congregation that day to day life was a mess. In the chapters that come before the one we heard read, Paul called them out on their internal divisions, their jealousy and quarrelling, their inability to manage sexual relationships, their perpetuation of class-based inequities even when they gathered for worship. For heaven's sake, their internal disputes even had them taking each other to court! (1:10-12; 3:3-21; 5; 6:1-8; 11:18-22)

In this context, in chapter 12, he tries to help them think of themselves as being like a body, with all sorts of different members - every one of which is important to the health and life of the whole. In this body, "If one member suffers all suffer together with it; if one member is honoured all rejoice together with it" (12:26). He tries to get them to think of themselves as Christ's body. And then he moves into the crescendo of chapter 13.

"Love is patient; love is kind; love is not envious or boastful or arrogant or rude. It does not insist on its own way; it is not irritable or resentful; it does not rejoice in wrongdoing, but rejoices in the truth. It bears all things." (13:4-7)

These are the ordinary practices of Christian love. Practices that - if we sustain them - will be used by the Spirit to transform our fellowship.

The command to love is specifically addressed the Christian congregation. It's about how we must treat each other. The congregation is called to do just this one thing - to love each other. Everything else flows from that.

God puts together a congregation of people who don't belong together, and have no history of getting along together - Jews and Greeks, slaves and free, men and women (1 Corinthians 12:13; Galatians 3:28). God puts together people who don't belong together and says to them, Love one another.

And it's hard, really hard. Here in Australia God puts First Peoples and Second Peoples together in one congregation. It can be hard enough for the First Peoples to be together - more than 400 nations from the Adnyamathanha to the Yolngu. It's hard for our multicultural Second Peoples to be together too - everyone from Anglos to Zambians. But God goes further. In Christ God puts First Peoples and Second Peoples together in one body and calls us to do just one thing: love one another.

Why? Why would God do this? Because in Jesus Christ God fulfilled his promise to Abram: "in you all the families of the earth shall be blessed" (Genesis 12:3). Why? Because "There is no longer Jew or Greek, there is no longer male and female; for you are all one in Christ Jesus" (Galatians 3:28). Why? Because "God was in Christ reconciling the world to himself" (2 Corinthians 5:19).

God commands us to do one thing: to love one another. Because in doing that we become a sign of what God has done in Christ for the whole world.

That's why we're here today. We've come to the most public place we can think of to stand together as First and Second Peoples and say, "We're very different from each other. In many ways we're very divided. But in Christ we have been made into one body... and we're in pain."

The cruel injustice and crushing disadvantage that our members from the First Peoples deal with every day hurts us all.

So we've committed ourselves to the task of working towards justice and reconciliation in the church - through our Covenant, through the truth-telling of our amended Constitution, and through all the day to day, practical loving of one another that they imply.

God has commanded us to do just one thing: to love one another.

In doing that we become a sign to Australia of what God has done in Christ for the whole nation and the whole world.

Prayer Vigil for Justice for Indigenous Australians

Parliament House Lawns, Canberra

18 March 2014