Cyprian : That we must not grieve the Holy Spirit, whom we have received. Paul the apostle to the Ephesians: "Grieve not the Holy Spirit of God, in which ye were sealed in the day of redemption. Let all bitterness, and wrath, and indignation, and clamour, and blasphemy, be taken away from you." — Treatise XII Three Books of Testimonies Against the Jews Pseudo-Clement : Wherefore, then, my brethren, let us struggle with all earnestness, knowing that the contest is [in our case] close at hand, and that many undertake long voyages to strive for a corruptible reward; yet all are not crowned, but those only that have laboured hard and striven gloriously. Let us therefore so strive, that we may all be crowned. Let us run the straight course, even the race that is incorruptible; and let us in great numbers set out for it, and strive that we may be crowned. And should we not all be able to obtain the crown, let us at least come near to it. We must remember that he who strives in the corruptible contest, if he be found acting unfairly, is taken away and scourged, and cast forth from the lists. What then think ye? If one does anything unseemly in the incorruptible contest, what shall he have to bear? For of those who do not preserve the seal [unbroken], [the Scripture] says, "Their worm shall not die, and their fire shall not be quenched, and they shall be a spectacle to all flesh." [Isaiah 66:24] — Second Epistle To The Corinthians (Pseudo-Clement)