For the husband is the head of the wife (oti anhr estin kepalh th gunaiko). "For a husband is head of the (his) wife." No article with anhr or kepalh. As Christ also is the head of the church (w kai o Cristo kepalh th ekklhsia). No article with kepalh, "as also Christ is head of the church." This is the comparison, but with a tremendous difference which Paul hastens to add either in an appositional clause or as a separate sentence. Himself the saviour of the body (auto swthr tou swmato). He means the church as the body of which Christ is head and Saviour.