The Roshi and the Rabbi
Norman Fischer, a leading Zen teacher, explains to Vishvapani his initiatives to revive Jewish spirituality through meditation
"DL: ... What about issues such as believing in God?
NF: It depends what you mean by God. Rabbi Lew tells a story: someone comes to him, very angry, and says, 'I'm mad because I don't believe in God!' So the Rabbi says, 'Describe for me the God you don't believe in'. So the person does that, and Rabbi Lew says, 'Well, I don't believe in that God either.'
God to me is the word to describe the sense of presence that is larger than any individual or individual entity. So if God is a Supreme Being then, no, I don't think there is a Supreme Being. But there have been many volumes of theology written on God and very few of them depict God as a Supreme Being. You have to pick carefully through them philosophically to see where they differ from Buddhist thought."
...
"We all have identity. There is no being a person without an identity. If you are trapped in your identity, whether that is 'being a Jewish person' or 'not being a Jewish person' then either way you are suffering. But it is possible to embrace being Jewish as the identity to which you are karmically wedded, without being myopic and limited. For it's not the alpha and omega of what you are - ultimately you are Buddha Nature."
http://www.dharmalife.com/issue18/roshiandrabbi.html