Oecumenius

Do not seal, he says, these words, that is, do not keep them to yourself, nor lock them away and guard them in the treasury of your mind, but reveal them to all. For he says the time is near. He speaks something like this: the time until their fulfillment is not very long, as before. But do not think it necessary that they be heard now; for it is not personal, as if their omission were unnecessary. For what need is there of exhortation to those who are from now tried by evils or by goods? …

Commentary on Revelation ↗

Cyprian

But since I know, beloved brethren, that very many are eager, either on account of the burden or the pain of smarting wrongs, to be quickly avenged of those who act harshly and rage against them, we must not withhold the fact in the furthest particular, that placed as we are in the midst of these storms of a jarring world, and, moreover, the persecutions both of Jews or Gentiles, and heretics, we may patiently wait for the day of (God's) vengeance, and not hurry to revenge our suffering with a querulous haste, since it is written, …

Treatise IX. On the Advantage of Patience ↗

Bede

Do not seal up the words of the prophecy of this book, etc. As the future judgment approaches, it was necessary for the divine precepts, judgments, and promises to be revealed, by the observance of which the meek may acquire reward, and the disobedient, having neglected them, may incur punishment.

Commentary on Revelation ↗