Scripture tells us the Christian last days began on the day of Pentecost after Jesus’ resurrection and ascension1 and continue to this present day, until the “day of the Lord”12. In the normal course of their writing, all of the New Testament writers refer to their time as the last days or some variant1,2,3,6,7,8,9,11,12,13,14 – whether “last time”2, “end of the ages”3,13, “last times”6, “last hour”7, “days are coming”10, “these days”8,11, or even “this salvation”9.
Furthermore, we have the prophets that spoke of the “last days”1,4,5,10 (not an exhaustive list) coupled with the New Testament writers that by inspiration interpreted that what the prophets prophesied about began during their days (the first century)1,4,8,9,10,12. These are evident with a quick reading/review, but possibly the most involved and interesting is Jeremiah10. His prophecy (given the confirmation and interpretation of it by inspired, New Testament writers) and the broader context of verses with other characteristics of the last days is worth a read10.