Matthew 5, 27-32 + CSDC and CV

(CV 6b) I cannot “give” what is mine to the other, without first giving him what pertains to him in justice. If we love others with charity, then first of all we are just towards them. Not only is justice not extraneous to charity, not only is it not an alternative or parallel path to charity: justice is inseparable from charity [1],  and intrinsic to it. Justice is the primary way of charity or, in Paul VI's words, “the minimum measure” of it [2] an integral part of the love “in deed and in truth” (1 Jn 3:18), to which Saint John exhorts us.

Notes: [1] Cf. Paul VI, Encyclical Letter Populorum Progressio (26 March 1967), 22: AAS 59 (1967), 268; Second Vatican Ecumenical Council, Pastoral Constitution on the Church in the Modern World Gaudium et Spes, 69. [2] Address for the Day of Development (23 August 1968): AAS 60 (1968), 626-627. 

Christian communities will be able to  draw principles for reflection, criteria for judgment and guidelines for action

CSDC 11c. Christian communities will be able to look to this document for assistance in analyzing situations objectively, in clarifying them in the light of the unchanging words of the Gospel, in drawing principles for reflection, criteria for judgment and guidelines for action[12].

Notes: [12] Cf. Paul VI, Apostolic Letter Octogesima Adveniens, 4: AAS 63 (1971), 403.

(Mt 5, 27-32) God himself is the author of marriage 

[27] "You have heard that it was said, 'You shall not commit adultery.' [28] But I say to you, everyone who looks at a woman with lust has already committed adultery with her in his heart. [29] If your right eye causes you to sin, tear it out and throw it away. It is better for you to lose one of your members than to have your whole body thrown into Gehenna. [30] And if your right hand causes you to sin, cut it off and throw it away. It is better for you to lose one of your members than to have your whole body go into Gehenna. [31] "It was also said, 'Whoever divorces his wife must give her a bill of divorce.' [32] But I say to you, whoever divorces his wife (unless the marriage is unlawful) causes her to commit adultery, and whoever marries a divorced woman commits adultery.

CSDC 215. The family has its foundation in the free choice of the spouses to unite themselves in marriage, in respect for the meaning and values of this institution that does not depend on man but on God himself: “For the good of the spouses and their offspring as well as of society, this sacred bond no longer depends on human decision alone. For God himself is the author of marriage and has endowed it with various benefits and purposes”[473]. Therefore, the institution of marriage — “intimate partnership of life and love ... established by the Creator and endowed by him with its own proper laws” [474] — is not the result of human conventions or of legislative prescriptions but acquires its stability from divine disposition[475]. It is an institution born, even in the eyes of society, “from the human act by which the partners mutually surrender themselves to each other”[476], and is founded on the very nature of that conjugal love which, as a total and exclusive gift of person to person, entails a definitive commitment expressed by mutual, irrevocable and public consent[477]. This commitment means that the relationships among family members are marked also by a sense of justice and, therefore, by respect for mutual rights and duties.

Notes: [473] Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 48: AAS 58 (1966), 1067-1068. [474] Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 48: AAS 58 (1966), 1067. [475] Cf. Catechism of the Catholic Church, 1603. [476] Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 48: AAS 58 (1966), 1067. [477] Cf. Catechism of the Catholic Church, 1639. 

[Initials and Abbreviations.- CSDC: Pontifical Council for Justice And Peace, Compendium of the Social Doctrine of the Church; -  SDC: Social Doctrine of the Church; - CV: Benedict XVI, Caritas in Veritate (Charity in truth)]