Catholicity, in the absolute sense of the word, as Turrettin remarks, can be predicated only of that society that includes the Church triumphant in heaven, as well as militant on earth, that society that comprehends all the elect, reaching back to the days of Abel, and onward to the last trumpet.
Institutio Theologiae Elencticae, Francisco Turrettino, vol. iii. quest, vi.; Genevae, 1688.
(source, Wylie, The Papacy, pp. 206-07)