On the contrary, on Lk. 3:21, "Heaven was opened," the gloss of Bede says: "We see here the power of Baptism; from which when a man comes forth, the gates of the heavenly kingdom are opened unto him."
I answer that, To open the gates of the heavenly kingdom is to remove the obstacle that prevents one from entering therein. Now this obstacle is guilt and the debt of punishment. But it has been shown above (AA[1] ,2) that all guilt and also all debt of punishment are taken away by Baptism. It follows, therefore, that the effect of Baptism is to open the gates of the heavenly kingdom.
Reply to Objection 1: Baptism opens the gates of the heavenly kingdom to the baptized in so far as it incorporates them in the Passion of Christ, by applying its power to man.
Reply to Objection 2: When Christ's Passion was not as yet consummated actually but only in the faith of believers, Baptism proportionately caused the gates to be opened, not in fact but in hope. For the baptized who died then looked forward, with a sure hope, to enter the heavenly kingdom.
Reply to Objection 3: The baptized are subject to death and the penalties of the present life, not by reason of a personal debt of punishment but by reason of the state of their nature. And therefore this is no bar to their entrance to the heavenly kingdom, when death severs the soul from the body; since they have paid, as it were, the debt of nature.
Whether Baptism has an equal effect in all?
Objection 1: It seems that Baptism has not an equal effect in all. For the effect of Baptism is to remove guilt. But in some it takes away more sins than in others; for in children it takes away only original sins, whereas in adults it takes away actual sins, in some many, in others few. Therefore Baptism has not an equal effect in all.
Objection 2: Further, grace and virtues are bestowed on man by Baptism. But some, after Baptism, seem to have more grace and more perfect virtue than others who have been baptized. Therefore Baptism has not an equal effect in all.
Objection 3: Further, nature is perfected by grace, as matter by form. But a form is received into matter according to its capacity. Therefore, since some of the baptized, even children, have greater capacity for natural gifts than others have, it seems that some receive greater grace than others.
Objection 4: Further, in Baptism some receive not only spiritual, but also bodily health; thus Constantine was cleansed in Baptism from leprosy. But all the infirm do not receive bodily health in Baptism. Therefore it has not an equal effect in all.
On the contrary, It is written ( Eph. 4:5 ): "One Faith, one Baptism." But a uniform cause has a uniform effect. Therefore Baptism has an equal effect in all.
I answer that, The effect of Baptism is twofold, the essential effect, and the accidental. The essential effect of Baptism is that for which Baptism was instituted, namely, the begetting of men unto spiritual life. Therefore, since all children are equally disposed to Baptism, because they are baptized not in their own faith, but in that of the Church, they all receive an equal effect in Baptism. Whereas adults, who approach Baptism in their own faith, are not equally disposed to Baptism; for some approach thereto with greater, some with less, devotion. And therefore some receive a greater, some a smaller share of the grace of newness; just as from the same fire, he receives more heat who approaches nearest to it, although the fire, as far as it is concerned, sends forth its heat equally to all.
But the accidental effect of Baptism, is that to which Baptism is not ordained, but which the Divine power produces miraculously in Baptism: thus on Rom. 6:6, "that we may serve sin no longer," a gloss says: "this is not bestowed in Baptism, save by an ineffable miracle of the Creator, so that the law of sin, which is in our members, be absolutely destroyed." And such like effects are not equally received by all the baptized, even if they approach with equal devotion: but they are bestowed according to the ordering of Divine providence.
Reply to Objection 1: The least baptismal grace suffices to blot out all sins. Wherefore that in some more sins are loosed than in others is not due to the greater efficacy of Baptism, but to the condition of the recipient: for in each one it looses whatever it finds.
Reply to Objection 2: That greater or lesser grace appears in the baptized, may occur in two ways. First, because one receives greater grace in Baptism than another, on account of his greater devotion, as stated above. Secondly, because, though they receive equal grace, they do not make an equal use of it, but one applies himself more to advance therein, while another by his negligence baffles grace.
Reply to Objection 3: The various degrees of capacity in men arise, not from a variety in the mind which is renewed by Baptism (since all men, being of one species, are of one form), but from the diversity of bodies. But it is otherwise with the angels, who differ in species. And therefore gratuitous gifts are bestowed on the angels according to their diverse capacity for natural gifts, but not on men.
Reply to Objection 4: Bodily health is not the essential effect of Baptism, but a miraculous work of Divine providence.
Whether insincerity hinders the effect of Baptism?
Objection 1: It seems that insincerity does not hinder the effect of Baptism. For the Apostle says ( Gal. 3:27 ): "As many of you as have been baptized in Christ Jesus, have put on Christ." But all that receive the Baptism of Christ, are baptized in Christ. Therefore they all put on Christ: and this is to receive the effect of Baptism. Consequently insincerity does not hinder the effect of Baptism.
Objection 2: Further, the Divine power which can change man's will to that which is better, works in Baptism. But the effect of the efficient cause cannot be hindered by that which can be removed by that cause. Therefore insincerity cannot hinder the effect of Baptism.
Objection 3: Further, the effect of Baptism is grace, to which sin is in opposition. But many other sins are more grievous than insincerity, which are not said to hinder the effect of Baptism. Therefore neither does insincerity.
On the contrary, It is written ( Wis. 1:5 ): "The Holy Spirit of discipline will flee from the deceitful." But the effect of Baptism is from the Holy Ghost. Therefore insincerity hinders the effect of Baptism.
I answer that, As Damascene says (De Fide Orth. ii), "God does not compel man to be righteous." Consequently in order that a man be justified by Baptism, his will must needs embrace both Baptism and the baptismal effect. Now, a man is said to be insincere by reason of his will being in contradiction with either Baptism or its effect. For, according to Augustine (De Bapt. cont. Donat. vii), a man is said to be insincere, in four ways: first, because he does not believe, whereas Baptism is the sacrament of Faith; secondly, through scorning the sacrament itself; thirdly, through observing a rite which differs from that prescribed by the Church in conferring the sacrament; fourthly, through approaching the sacrament without devotion. Wherefore it is manifest that insincerity hinders the effect of Baptism.
Reply to Objection 1: "To be baptized in Christ," may be taken in two ways. First, "in Christ," i.e. "in conformity with Christ." And thus whoever is baptized in Christ so as to be conformed to Him by Faith and Charity, puts on Christ by grace. Secondly, a man is said to be baptized in Christ, in so far as he receives Christ's sacrament. And thus all put on Christ, through being configured to Him by the character, but not through being conformed to Him by grace.
Reply to Objection 2: When God changes man's will from evil to good, man does not approach with insincerity. But God does not always do this. Nor is this the purpose of the sacrament, that an insincere man be made sincere; but that he who comes in sincerity, be justified.