Christianity knows a lot about defection.
Right at the heart of the Jesus story is a moment of betrayal.
Judas turns Jesus over to be crucified.
The price to betray the saviour of the world? A few silver coins.
But in Christianity, defection is not always a bad thing.
If defection is a dirty word, repentance and conversion are a positive counterpart.
Saying Jesus is Lord in a world where Caesar is Lord is an act of subversion.
It is a recognition that the authority of Caesar, of any government, has its limits.
Christians are called to serve and love their communities and nations – but they only ever have a provisional allegiance to any earthly power or government.
And this makes Christians untrustworthy.
On a deep level, to be a Christian is to have defected from an allegiance to a world which values power and money to service of the God of love.
And this service to a higher power is often experienced by others as a betrayal.
It is little surprise then that from time to time, governments across the world have treated Christians with that same whiff of suspicion reserved for defectors.
But in the United Kingdom, religious freedoms afford believers with the same luxuries afforded to MPs. They can defect publicly – they can tell their stories. They can encourage others to cross the floor.
Can a bird change its feathers, or a leopard change its spots?
The Christian story says yes.
As the election campaign draws on and as people defect from one party or another and as people ask those questions of defectors
Perhaps it is time to focus less on others, and instead ask those questions of yourself.
Are you genuine?
Who do you really work for?
What do you get out of it?
Have you truly renounced your old ways?
Defection can be a good thing.
Will you tell your story?