Joel's prophesy was fulfilled. These are the last days.
Jas 5:2-3 Your riches have rotted, and your clothes have become moth-eaten. Your gold and silver have corroded, and their poison will be a witness against you, and will eat your flesh as fire. You heaped treasure in the last days.
The apostles looked upon the time from Pentecost to now as the “last days”. Peter’s comments in Acts is consistent with James and Hebrews. This is the last covenant-the last days.
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You trying to shock me into next week?
I didn’t realize there was that much agreement between us on the topic! LOL.
Blue-duncan says the last days started with Adam. That could be, but none of the OT authors (Isaiah 2:2, Jeremiah 23:20 and 49:39, Eze 38:16, Hosea 3:5, Amos 4:2, Micah 4:1, and Joel 2:82-83) write about the last days as anytyhing but future, and not a "developing" event.
It is only in the New Testament that one begins to find references to "these last days" in the present (Heb 1:2 and James 5:3), which you cite. However, 2 Timothy and 2 Peter do not share that view but rather continue to speak of the last days as a future event:
"Know this first of all, that in the last days mockers will come with their mocking, following after their own lusts." [2 Pet 3:3]