Whatever Aquinas says in one place concerning election, regeneration, justification, the bestowal of the Holy Spirit, adoption, sanctification, and other graces, must be considered with the realization that he holds heretical views on the sacraments. In one part of the Summa, you can read what Aquinas says about justification by faith, but then you go to another part and see what he says about justification through the sacrament of baptism….Are we justified by faith in Christ alone (sola fide) or are we justified through a grace conferred in baptism? Aquinas hedges concerning the first part of that question and unequivocally affirms the second part of it.