The prophecy of Isaiah 2 was to take place in Israel’s “last days” (Isaiah 2:1-2). This short video teaches that the biblical last days began with in the ministry of Jesus and were still present in AD63 when the book of Hebrews was written (Hebrews 1:1-2).
This means that the last days which were present on Pentecost (Acts 2:15-17) were the same last days of Hebrews 1, which began with the ministry of Jesus under the Old Covenant age. Therefore, Isaiah 2 was being fulfilled in Israel’s last days, and would reach it’s consummative fulfillment at the end of the Old Covenant age in AD70.
The Institute Of Fulfilled Eschatology