Evangelium Vitae §48

⁴⁸ Life is indelibly marked by a truth of its own. By accepting God's gift, man is obliged to maintain life in this truth which is essential to it. To detach oneself from this truth is to condemn oneself to meaninglessness and unhappiness, and possibly to become a threat to the existence of others, since the barriers guaranteeing respect for life and the defence of life, in every circumstance, have been broken down. The truth of life is revealed by God's commandment. The word of the Lord shows concretely the course which life must follow if it is to respect its own truth and to preserve its own dignity. The protection of life is not only ensured by the spe- cific commandment "You shall not kill" (Ex 20:13; Dt 5:17); the entire Law of the Lord serves to protect life, because it reveals that truth in which life finds its full meaning. It is not surprising, therefore, that God's Covenant with his people is so closely linked to the perspective of life, also in its bodily dimension. In that Covenant, God's commandment is offered as the path of life: "I have set before you this day life and good, death and evil. If you obey the commandments of the Lord your God which I command you this day, by loving the Lord your God, by walking in his ways, and by keeping his commandments and his statutes and his ordinances, then you shall live and multiply, and the Lord your God will bless you in the land which you are entering to take possession of" (Dt 30:15-16). What is at stake is not only the land of Canaan and the existence of the people of Israel, but also the world of today and of the future, and the existence of all humanity. In fact, it is altogether impossible for life to remain authentic and complete once it is detached from the good; and the good, in its turn, is essentially bound to the commandments of the Lord, that is, to the "law of life" (Sir 17:11). The good to be done is not added to life as a burden which weighs on it, since the very purpose of life is that good and only by doing it can life be built up. It is thus the Law as a whole which fully protects human life. This explains why it is so hard to remain faithful to the commandment "You shall not kill" when the other "words of life" (cf. Acts 7:38) with which this commandment is bound up are not observed. Detached from this wider framework, the commandment is destined to become nothing more than an obligation imposed from without, and very soon we begin to look for its limits and try to find mitigating factors and exceptions. Only when people are open to the fullness of the truth about God, man and history will the words "You shall not kill" shine forth once more as a good for man in himself and in his relations with others. In such a perspective we can grasp the full truth of the passage of the Book of Deuteronomy which Jesus repeats in reply to the first temptation: "Man does not live by bread alone, but ... by everything that proceeds out of the mouth of the Lord" (Dt 8:3; cf. Mt 4:4). It is by listening to the word of the Lord that we are able to live in dignity and justice. It is by observing the Law of God that we are able to bring forth fruits of life and happiness: "All who hold her fast will live, and those who forsake her will die" (Bar 4:1).