"ALL souls, therefore; are shut up within Hades: do you admit this? It is true, whether you say yes or no: moreover, there are already experienced there punishments and consolations; and there you have a poor man and a rich...Moreover, the soul executes not all its operations with the ministration of the flesh; for the judgment of God pursues even simple cogitations and the merest volitions. 'Whosoever looketh on a woman to lust after her, hath committed adultery with her already in his heart.' Therefore, even for this cause it is most fitting that the soul, without at all waiting for the flesh, should be punished for what it has done without the partnership of the flesh. So, on the same principle, in return for the pious and kindly thoughts in which it shared not the help of the flesh, shall it without the flesh receive its consolation. In short, inasmuch as we understand 'the prison' pointed out in the Gospel to be Hades, and as we also interpret 'the uttermost farthing' to mean the very smallest offence which has to be recompensed there before the resurrection, no one will hesitate to believe that the soul undergoes in Hades some compensatory discipline, without prejudice to the full process of the resurrection, when the recompense will be administered through the flesh besides." (A Treatise on the Soul, 58)
"AS often as the anniversary comes round, we make offerings for the dead as birthday honours." (The Chaplut, 3)
"A woman is more bound when her husband is dead...Indeed, she prays for his soul, and requests refreshment for him meanwhile, and fellowship (with him) in the first resurrection; and she offers (her sacrifice) on the anniversary of his falling asleep." (On Monogamy, 10)
~Tertullian
Woodcut depicting Quintus Septimius Florens Tertullianus