What is the relationship between concupiscence and sexual same sex attraction?

One of the most contentious issues facing the Christian Church at this moment is how can Christians think and speak truthfully, clearly and compassionately about desire and temptation in a way that does not condone or encourage sin? 

There were years in Christian ministry where I never really thought about the term concupiscence, and many of my peers, when I mention it say. ‘Remind me again what concupiscence is?’

The tenth of the Anglican Church’s 39 Articles says (in part) that: ‘concupiscence and lust hath of itself the nature of sin.’

Over the last few years, the relationship between the doctrine of concupiscence and ministry to those who experience same sex attraction has become a burning issue (and a right understanding of it will massively help many of the debates around ministry to friends who experience same sex attraction).

Rob Smith lectures at Sydney Missionary and Bible College, serves in the Sydney Anglican Ministry, the Council of Living Faith, and is a member of the Sydney Anglican Doctrine Commission, which has just produced a report on the relationship between concupiscence and sexual same sex attraction. 

Living Faith: http://www.livingfaith.online