2 Thessalonians 2:2

St. Augustine, writing to Hesychium, declareth that no one from the Scripture can be assured of the day, year, or age [century] when the second coming shall be. (ep. lxxx.) Let us attend to what St. Augustine declares he had learnt from the first Church authorities. At the last judgment, or about that time, will arrive Elias, the Thesbite, the conversion of the Jews, the persecution of antichrist, the coming of Jesus Christ, the resurrection of the dead, the separation of the good from the bad, the conflagration of the world, and the renovation of the same: that these things will arrive, we are to believe, but in what manner and in what order experience will teach better than reason. It is my opinion that they will come in the order I have related them. (De Civ. Dei. lib. xx. cap. ult.) That the man of sin will be born of the Jewish tribe of Dan, that he will cruelly persecute the faithful for three years and a half, that he will put to death Henoch [Enoch] and Elias, and that great, very great, will be the apostacy, is the general belief. Oh! God, preserve us with thy grace, and do not permit us to lose sight of the dreadful danger that threatens even the elect.