65. The heightened concern for freedom in our own day has led many students of the behavioural and the theological sciences to develop a more penetrating analysis of its nature and of its dynamics. It has been rightly pointed out that freedom is not only the choice for one or another particular action; it is also, within that choice, a decision about oneself and a setting of one's own life for or against the Good, for or against the Truth, and ultimately for or against God. Emphasis has rightly been placed on the importance of certain choices which "shape" a person's entire moral life, and which serve as bounds within which other particular everyday choices can be situated and allowed to develop.

66. There is no doubt that Christian moral teaching, even in its Biblical roots, acknowledges the specific importance of a fundamental choice which qualifies the moral life and engages freedom on a radical level before God. It is a question of the decision of faith, of the obedience of faith (cf Rom 16:26) "by which man makes a total and free self-commitment to God, offering 'the full submission of intellect and will to God as he reveals' ".112 This faith, which works through love (cf Gal 5:6), comes from the core of man, from his "heart" (cf Rom 10:10), whence it is called to bear fruit in works (cf Mt 12:33-35; Lk 6:43-45; Rom 8:5-10; Gal 5:22). In the Decalogue one finds, as an introduction to the various commandments, the basic clause: "I am the Lord your God..." (Ex 20:2), which, by impressing upon the numerous and varied particular prescriptions their primordial meaning, gives the morality of the Covenant its aspect of completeness, unity and profundity. Israel's fundamental decision, then, is about the fundamental commandment (cf Jos 24:14-25; Ex 19:3-8; Mic 6:8). The morality of the New Covenant is similarly dominated by the fundamental call of Jesus to follow him — thus he also says to the young man: "If you wish to be perfect... then come, follow me" (Mt 19:21); to this call the disciple must respond with a radical decision and choice. The Gospel parables of the treasure and the pearl of great price, for which one sells all one's possessions, are eloquent and effective images of the radical and unconditional nature of the decision demanded by the Kingdom of God. The radical nature of the decision to follow Jesus is admirably expressed in his own words: "Whoever would save his life will lose it; and whoever loses his life for my sake and the Gospel's will save it" (Mk 8:35).

Jesus' call to "come, follow me" marks the greatest possible exaltation of human freedom, yet at the same time it witnesses to the truth and to the obligation of acts of faith and of decisions which can be described as involving a fundamental option. We find a similar exaltation of human freedom in the words of Saint Paul: "You were called to freedom, brethren" (Gal 5:13). But the Apostle immediately adds a grave warning: "Only do not use your freedom as an opportunity for the flesh". This warning echoes his earlier words: "For freedom Christ has set us free; stand fast therefore, and do not submit again to a yoke of slavery" (Gal 5:1). Paul encourages us to be watchful, because freedom is always threatened by slavery. And this is precisely the case when an act of faith — in the sense of a fundamental option — becomes separated from the choice of particular acts, as in the tendencies mentioned above.

67. These tendencies are therefore contrary to the teaching of Scripture itself, which sees the fundamental option as a genuine choice of freedom and links that choice profoundly to particular acts. By his fundamental choice, man is capable of giving his life direction and of progressing, with the help of grace, towards his end, following God's call. But this capacity is actually exercised in the particular choices of specific actions, through which man deliberately conforms himself to God's will, wisdom and law. It thus needs to be stated that the so-called fundamental option, to the extent that it is distinct from a generic intention and hence one not yet determined in such a way that freedom is obligated, is always brought into play through conscious and free decisions. Precisely for this reason, it is revoked when man engages his freedom in conscious decisions to the contrary, with regard to morally grave matter.

68. Here an important pastoral consideration must be added. According to the logic of the positions mentioned above, an individual could, by virtue of a fundamental option, remain faithful to God independently of whether or not certain of his choices and his acts are in conformity with specific moral norms or rules. By virtue of a primordial option for charity, that individual could continue to be morally good, persevere in God's grace and attain salvation, even if certain of his specific kinds of behaviour were deliberately and gravely contrary to God's commandments as set forth by the Church.

In point of fact, man does not suffer perdition only by being unfaithful to that fundamental option whereby he has made "a free self-commitment to God".113 With every freely committed mortal sin, he offends God as the giver of the law and as a result becomes guilty with regard to the entire law (cf Jas 2:8-11); even if he perseveres in faith, he loses "sanctifying grace", "charity" and "eternal happiness".¹¹⁴ As the Council of Trent teaches, "the grace of justification once received is lost not only by apostasy, by which faith itself is lost, but also by any other mortal sin".¹¹⁵

69. As we have just seen, reflection on the fundamental option has also led some theologians to undertake a basic revision of the traditional distinction between mortal sins and venial sins. They insist that the opposition to God's law which causes the loss of sanctifying grace — and eternal damnation, when one dies in such a state of sin — could only be the result of an act which engages the person in his totality: in other words, an act of fundamental option. According to these theologians, mortal sin, which separates man from God, only exists in the rejection of God, carried out at a level of freedom which is neither to be identified with an act of choice nor capable of becoming the object of conscious awareness. Consequently, they go on to say, it is difficult, at least psychologically, to accept the fact that a Christian, who wishes to remain united to Jesus Christ and to his Church, could so easily and repeatedly commit mortal sins, as the "matter" itself of his actions would sometimes indicate. Likewise, it would be hard to accept that man is able, in a brief lapse of time, to sever radically the bond of communion with God and afterwards be converted to him by sincere repentance. The gravity of sin, they maintain, ought to be measured by the degree of engagement of the freedom of the person performing an act, rather than by the matter of that act.

70. The Post-Synodal Apostolic Exhortation Reconciliatio et Paenitentia reaffirmed the importance and permanent validity of the distinction between mortal and venial sins, in accordance with the Church's tradition. And the 1983 Synod of Bishops, from which that Exhortation emerged, "not only reaffirmed the teaching of the Council of Trent concerning the existence and nature of mortal and venial sins, but it also recalled that mortal sin is sin whose object is grave matter and which is also committed with full knowledge and deliberate consent".116

The statement of the Council of Trent does not only consider the "grave matter" of mortal sin; it also recalls that its necessary condition is "full awareness and deliberate consent". In any event, both in moral theology and in pastoral practice one is familiar with cases in which an act which is grave by reason of its matter does not constitute a mortal sin because of a lack of full awareness or deliberate consent on the part of the person performing it. Even so, "care will have to be taken not to reduce mortal sin to an act of 'fundamental option' — as is commonly said today — against God", seen either as an explicit and formal rejection of God and neighbour or as an implicit and unconscious rejection of love. "For mortal sin exists also when a person knowingly and willingly, for whatever reason, chooses something gravely disordered. In fact, such a choice already includes contempt for the divine law, a rejection of God's love for humanity and the whole of creation: the person turns away from God and loses charity. Consequently, the fundamental orientation can be radically changed by particular acts. Clearly, situations can occur which are very complex and obscure from a psychological viewpoint, and which influence the sinner's subjective imputability. But from a consideration of the psychological sphere one cannot proceed to create a theological category, which is precisely what the 'fundamental option' is, understanding it in such a way that it objectively changes or casts doubt upon the traditional concept of mortal sin".¹¹⁷

The separation of fundamental option from deliberate choices of particular kinds of behaviour, disordered in themselves or in their circumstances, which would not engage that option, thus involves a denial of Catholic doctrine on mortal sin: "With the whole tradition of the Church, we call mortal sin the act by which man freely and consciously rejects God, his law, the covenant of love that God offers, preferring to turn in on himself or to some created and finite reality, something contrary to the divine will (conversio ad creaturam). This can occur in a direct and formal way, in the sins of idolatry, apostasy and atheism; or in an equivalent way, as in every act of disobedience to God's commandments in a grave matter".¹¹⁸