351. The Internal Works Commanded by Christ.--In the Sermon on the Mount were given the commandments of the New Law that summarize the entire duty of the Christian as to his internal acts: “Everyone that heareth these My words, and doeth them, shall be likened to a wise man that built his house upon a rock” (Matt., vii. 24). Thus, there are: (a) internal acts commanded as regards our own wills and purposes (we must avoid not only external, but also internal sins and the occasions of sin; we must not only do good, but we must have a good motive, not placing our end in human applause or riches); (b) internal acts commanded as regards our neighbor (we must not judge him rashly, unjustly, presumptuously; nor must we trust him imprudently); (c) interior dispositions with which we must perform our duties (we must avoid inordinate cares, imploring and expecting the divine assistance; but we must also avoid carelessness, having our minds set on the narrow way, and eschewing seductions). 352. The Teaching of Christ on the Three Classes of Precepts: Moral, Ceremonial and Judicial.--(a) As regards the moral precepts (i.e., the Decalogue or Natural Law), not one jot or tittle was to pass away. But so little was the soul of these precepts then recognized that Christ gave a new commandment of love, by which His followers were to be known; and He reduced the whole law to the two commandments of love of God and love of our neighbor. (b) As regards the ceremonial precepts (i.e., the forms of Jewish worship), these were to be superseded. Christ declared the manner in which God was to be worshipped, namely, in spirit and in truth. He instituted the Sacrifice of the New Testament, appointed the ritual of the Sacraments (e.g., of Baptism and the Eucharist), and taught a form of prayer which was to be used by His disciples. Other things He left to be determined by the Church. (c) As regards the judicial precepts (i.e., the civil laws of the theocratic nation), these ceased to be necessary with the coming of Christ, whose Kingdom is spiritual and with whom there is no distinction of Jew or Gentile, since His law is for all. In fact, with the destruction of Jerusalem in A.D. 70, foretold by Christ, both the Temple worship and the separate national life of Israel came to an end. In correcting the false interpretations which the Pharisees put upon various judicial precepts of their law (e.g., in showing them that the law of retaliation and the law that public enemies should be put to death did not authorize revenge and hatred), Christ indicated the spirit that should animate all civil laws, namely, love of justice. He left it to the wisdom of future lawgivers to apply the rule of justice to the relations between man and man, nation and nation, as circumstances would require. 353. The precepts by which Christ established the primacy of the Pope and the hierarchy may be called judicial. But the details of this constitution He left the Church to determine.