Cap. V Obj. 6 Sol: Christ Head has causal priority — even the destined grafting comes from him
Christ the Church's Head is so joined to all his members that he holds causal priority over all the rest, and every outflow of free good to others comes through and for him — not only after they are grafted into Christ by faith, but so that even the benefit of being destinated to be grafted by faith is fetched from him and conferred on us in him. That Christ was predestinated Savior of the faithful only is true — he leads all the predestinated to salvation only by faith — not because faith is found in all the predestinated before the election decree itself.
Latin
Nam Caput Ecclesiae Christus ita conjunctus est cum membris suis omnibus, ut ipse prioritatem Causalitatis respectu reliquorum omnium obtineat, atque ut per et propter ipsum omnis boni gratuiti effluxus ad alios derivetur: derivatur autem non solummodo postquam sunt Christo insiti per fidem, sed ita ut hoc ipsum beneficium, quod per fidem illi inserendi destinantur, ab eo arcessendum sit, et in eo nobis conferendum. Quod igitur dicunt, Christum praedestinatum esse Salvatorem fidelium solummodo, id quidem verum est, quia non nisi per fidem omnes praedestinatos ad salutem perducit; non autem quia fides in omnibus praedestinatis ante ipsum decretum electionis invenitur.