palestinian christians are the closest modern descendants of roman-era levantines (90% ancestry), so in a sense this is true, although the correct way to say it is "palestinians are the closest modern descendants to jesus." saying "jesus was palestinian" just invites a debate about the name palestine itself and insistence that he was a jew (which, of course, is true, but doesn't mean that modern jews are his most closest descendants). roman-era judeans (jews) later converted to christianity and become levantine christians, some of which went into diaspora instead and practiced the updated version of their religion with the authorship of the talmud.
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