God's own patience as the source and model
Tertullian has just dismissed pagan patience as a worldly show, and now turns to the divine source of Christian patience.
The authority for us to practice patience is not handed down by some human affectation, shaped from the stupor of a dog's calm. It is handed down by the divine arrangement of a living and heavenly discipline, which shows God himself as the first example of patience. He scatters the flower of this light equally over the just and the unjust. He allows the services of the seasons, the servitude of the elements, and the tributes of the whole creation to come to the worthy and the unworthy alike. He endures the most ungrateful pagans, who adore the mockeries of the arts and the works of his own hands, who persecute his name and his family, while luxury, greed, iniquity, and malice grow insolent day by day. By his own patience he detracts from himself. For many do not believe in the Lord for this very reason: they do not know him angry at the world for so long.
Latin
Nobis exercendae patientiae auctoritatem non adfectatio humana caninae aequanimitatis stupore formata sed uiuae ac caelestis disciplinae diuina dispositio delegat, deum ipsum ostendens patientiae exemplum iam primum, qui florem lucis huius super iustos et iniustos aequaliter spargit, qui temporum officia, elementorum seruitia, totius geniturae tributa dignis simul et indignis patiatur occurrere, sustinens ingratissimas nationes ludibria artium et opera manuum suarum adorantes, nomen familiam ipsius persequentes, luxuriam auaritiam iniquitatem malignitatem cotidie insolescentem, ut sua sibi patientia detrahat. plures enim dominum idcirco non credunt, quia saeculo iratum tamdiu nesciunt.