Baptism does not profit a man outside unity with the Church ... For many heretics also possess this Sacrament but not the fruits of salvation ... The benefits which flow from Baptism are necessarily fruits which belong to the true Church alone. Children Baptized in other communions cease to be members of the Church when, after reaching the age of reason, they make formal profession of heresy, as, for example, by receiving communion in a non-Catholic Church.
Saint AugustineIt is not that we keep His commandments first and that then He loves but that He loves us and then we keep His commandments. This is that grace which is revealed to the humble but hidden from the proud.
Saint Augustine