But the Spirit explicitly says that in LATER TIMES some will fall away from the faith, paying attention to deceitful spirits and doctrines of demons,
1Ti 4:2
by means of the hypocrisy of liars seared in their own conscience as with a branding iron ,
1Ti 4:3
men who forbid marriage and advocate abstaining from foods which God has created to be gratefully shared in by those who believe and know the truth.
Acts 2:17 ... And it shall come to pass in the last days, says God, That I will pour out of My Spirit on all flesh; Your sons and your daughters shall prophesy, Your young men shall see visions, Your old men shall dream dreams.
He's talking about contemporary events of his time.
Hebrews 1:1ff ... God ... has in these last days spoken to us by His Son
1 Pt 1:20 ... [Jesus] indeed was foreordained before the foundation of the world, but was manifest in these last times for you
1 John 2:18 ... Little children, it is the last hour; and as you have heard that the Antichrist is coming, even now many antichrists have come, by which we know that it is the last hour.
We've been in the "last days" and the "last hour" ever since the resurrection. That's what the Bible says.