2 Thessalonians 2:5

And, that is, Christ would not come unless the Antichrist came first.

"Remember ye not, that when I was yet with you, I told you these things?" Seest thou that it is necessary continually to say the same things, and to enlarge upon them in the same words? For behold, they heard him saying these things when present, and again they had need to be reminded of them. For as when they had heard concerning afflictions, "For verily," he says, "when we were with you, we told you beforehand that we are to suffer affliction"; they nevertheless forgot it, and he confirms them again by letters; so also having heard concerning the Coming of Christ, they again needed letters to compose them. He therefore reminds them, showing that he speaks of nothing strange, but what he had always said. For as in the case of husbandmen, the seeds are indeed cast into the earth once for all, yet do not constantly remain, but require much preparation withal, and if they do not break up the earth, and cover over the seeds sown, they sow for the birds that gather grain; so we also, unless by constant remembrance we cover over what has been sown, have but cast it all into the air. For both the devil carries it away, and our sloth destroys it, and the sun dries it up, and the rain washes it away, and the thorns choke it: so that it is not sufficient after once sowing it to depart, but there is need of much assiduity, driving off the birds, roofing up the thorns, filling up the stony ground with much earth, checking, and fencing off, and taking away everything injurious. But in the case of the earth all depends upon the husbandman, for it is a lifeless subject, and prepared only to be passive. But in the spiritual soil it is quite otherwise. All is not the teachers' part, but half at least, if not more, that of the disciples. It is our part indeed to cast the seed, but yours to do the things spoken for your recollection, by your works to show the fruits, to pull up the thorns by the roots.