Mark the agreement of prophet with prophet. Acquaint yourself also with another prophet who expresses himself in like manner. For Amos prophesied of the same things in a manner quite in accordance: “Thus says the Lord, Forasmuch therefore as you have beaten the poor with the fist, and taken choice gifts from him: you have built houses, but you shall not dwell in them: you have planted pleasant vineyards, but you shall not drink wine of them. For I know your manifold transgressions, in trampling justice beneath your foot, and taking a bribe, and turning aside the poor in the gate from their right. Therefore the prudent shall keep silence in that time, for it is an evil time.” Learn, beloved, the wickedness of the men of that time, how they spoil houses and fields, and take even justice from the just; for when these things come to pass, you may know that it is the end. For this reason are you instructed in the wisdom of the prophet, and the revelation that is to be in those days. And all the prophets, as we bare already said, have clearly signified the things that are to come to pass in the last times, just as they also have declared things of old.
Source: The End of the World (Pseudonymous) (New Advent)