St Paul, in his second letter to Corinth, spells this out further in the important eighth and ninth chapters, where he urges some of the Christian communities to be generous to others so that they may also have the chance to be generous in return.

Even when I was Archbishop of Wales and working with new bishops, I used to say, not realising quite how true it was, 'One of the things you will do as a bishop is disappoint people'.

Our present ecological crisis, the biggest single practical threat to our human existence in the middle to long term, has, religious people would say, a great deal to do with our failure to think of the world as existing in relation to the mystery of God, not just as a huge warehouse of stuff to be used for our convenience.

We are called to show utter commitment to the God who is revealed in Jesus and to all those to whom His invitation is addressed.

We discover too late that we have turned a blind eye to the extinction of a species that is essential to the balance of life in a particular context. Or we discover too late that the importation of a foreign life-form, animal or vegetable, has upset local ecosystems, damaging soil or neighbouring life-forms. We discover that we have come near the end of supplies-of fossil-fuels for example -on which we have built immense structures of routine expectation.

I value unity because I believe we learn truth from each other in this process.

Silence is letting what there is be what it is. In that sense it has to do profoundly with God: the silence of simply being. We experience that at times when there is nothing we can say or do that would not intrude on the integrity and the beauty of that being.