D'Souza presents a cumulative case rather than a single rule: Christianity is historically rooted in the Jewish biblical world; Jews retain a legitimate homeland claim; Israel is an ally against a threat that also targets Christians; and supporting the comparatively right or useful side can therefore become a general moral obligation.
Wilson’s central objection is a missing normative bridge. He argues that historical connection, another state’s right of self-defense, and shared strategic interests may supply reasons for favorable treatment but do not by themselves impose a specifically Christian duty to support Jews or Israel.
Wilson also advances a competing Christian-ethical assessment: because modern Israel is secular and supports policies he regards as contrary to Christianity, Christians may have reason to oppose those policies rather than subsidize the state. D'Souza answers that Israeli secularism is a departure from Judaism and that moral or defensive alliances do not require agreement with every belief or domestic policy of an ally.
The debate’s principal unresolved collision is whether a cumulative combination of historical patrimony, comparative justice, and common defense can generate an obligation without a more explicit Israel-specific Christian command. D'Souza eventually grounds obligations teleologically in the nature and purpose of persons and institutions; Wilson maintains that the specific bridge to supporting Israel still has not been shown.
The practical meaning of “support” remains deliberately broad in D'Souza’s case. He denies that the obligation fixes an aid amount or requires an individual Christian to contribute money, while Wilson argues that this indeterminacy makes the asserted duty difficult to distinguish from optional approval or ordinary strategic cooperation.