BINATION. – The celebration of two Masses on the same day by the same priest.
I. HISTORICAL NOTES
When instituting the Holy Sacrifice, Jesus did not establish the number of Masses that a priest may celebrate each day; this determination was left to ecclesiastical authority, which did not intervene with a true universal law until much later. Before then, as can be seen from some provincial councils and from hints in the writings of the Fathers and ecclesiastical authors, the practice of a single priest saying several Masses in one day had gradually become quite widespread (cf., for example, St. Leo the Great, Epist. 9, 2: PL 54, 626). Its origin was attributed by many to Rome, arising from necessity on certain more solemn feasts (Christmas, Holy Thursday, Easter, Pentecost, St. John the Baptist), when the basilica could not hold all the faithful at once, or when a single priest had charge of two churches. What had initially been done only on certain days began to be repeated more frequently. These were solemn or sung Masses; but this practice gave occasion for bination also in the case of private or low Masses, which, beginning in the 6th century, became increasingly common. Gradually, alongside the motive of necessity, there was added that of devotion, and later (once stipends were fixed) that of interest. Hence inevitable abuses arose, which eventually provoked the official intervention of the Church. Yet there were already some who sought to remedy the evil by word and example, asserting that just as Jesus Christ suffered but once for us, and thus saved all, so it was sufficient for every priest to celebrate but once a day. Others, however, reasoning from the fact that several Masses were said each day—even by different celebrants—concluded that the same priest could celebrate more than once, thinking that the more often the Passion of Jesus was commemorated, the more readily God would be moved to mercy. Walafrid Strabo, reporting these differing usages, cites on the one hand the example of St. Boniface, who celebrated only once, and on the other that of Leo III, who is said to have celebrated as many as seven or nine times in the same day (cf. Walafrid Strabo, *De rebus ecclesiasticis*, I, cap. 21; PL 114, 945).The Church’s official intervention first came from lower ecclesiastical authorities, but to varying degrees. While reforming bishops of the 10th century, such as Dunstan of Canterbury and Oswald of York, permitted no more than three Masses a day (P. Batiffol, *Leçons sur la Messe*, 7th ed., Paris 1920, p. 58)—as did the canons published under King Edgar of England (d. 975; cf. Mansi, XVIII, 516) and Canon 5 of the Council of Seligenstadt (1022; ibid., XIV, 397)—the Council of London (1200) and that of Lambeth (1206) allowed bination only rarely and for urgent necessity: at Christmas, Easter, or for a funeral, a wedding, or to supply for an absent parish priest (L. Thomassin, op. cit., III, 1, chaps. 72–73). During this period, the Popes also began to intervene: Alexander II (d. 1073) declared it sufficient for a priest to celebrate once a day, though he did not condemn a second Mass if necessary, especially out of devotion for the dead (Gratian, *Decretum*, Dist. I, *De consecrat.*, cap. 3); Innocent III in 1212 (*Decretales*, I, III, tit. 41, cap. 3) and Honorius III (ibid., cap. 12) established the principle of one Mass a day, recognizing the exception of three Masses at Christmas and of urgent necessity. Nevertheless, in the churches of Aragon the custom of celebrating three Masses even on All Souls’ Day persisted. Benedict XIV expressly granted this privilege to all Latin priests subject to the crowns of Spain and Portugal (1748; P. Gasparri, *CIC fontes*, II, no. 391, p. 169), a privilege that was maintained in South America even after the disappearance of the Spanish and Portuguese regimes, and which Leo XIII confirmed (1897; ibid., III, no. 633, p. 512). Finally, Benedict XV extended it to the entire Latin Church (10 Aug. 1915; ibid., III, no. 706, p. 852).