'A Methodist preacher [David Hallam] is preparing to sue his own church over claims it is using charitable donations to pursue a campaign of discrimination against Israeli Jews.
The legal dispute has been prompted by a controversial resolution passed at the Methodist Conference which called for a boycott of some Israeli goods.
If the legal action is successful, it would likely bring to an end all similar campaigns that boycott Israeli goods and services.
Mr Hallam, 62, a former labour MEP, said: "What I object to is money which I am putting on the collection plate on a Sunday being used to fund a political campaign against the Jewish state. This is both discriminatory and a misuse of a charity's funds.
"The Methodist Church seems to think it has a God given right to tell Jews how to run their affairs. It is very disturbing we are getting involved in a territory where we don't have any members or churches."'