In 2004 Greenberg's book, "Wrestling with God and Men: Homosexuality in the Jewish Tradition" was published, meeting with critical acclaim. In particular it addressed permitted and forbidden sexual behaviour: "While the common understanding of the verse 'Thou shall not lie with a male as one lies with a woman' [] has been taken to refer to both active and passive partners ... it would appear that the verse directly refers only to the active partner engulfing his penis in the body of another man. According to this analysis the verse prohibits one, and only one, sexual practice between men, namely, anal intercourse, and speaks specifically to the active partner. There is no mention of any other behavior that this verse would prohibit." In Greenberg's reading "the verse prohibits the kind of sex between men that is designed to effect the power and mastery of the penetrator. Sex for the conquest, for shoring up the ego, for selfaggrandizement, or worse, for the perverse pleasure of demeaning another man is prohibited," and he adds that reading Leviticus 18:22 "as a law against sexual domination and appropriation ... offers gay people a way to reconnect to God, Torah, and the Jewish people". Greenberg says that he interprets the passage in this way "because it offers me a way of coming back to Judaism. It's a radical reading, but if you believe that God hates what you are, why would you go to such a temple?"