At that time prophets came down from Jerusalem to Antioch. One of them named Agabus stood up and predicted by the Spirit that there would be a severe famine over all the world; and this took place during the reign of Claudius. The disciples determined that according to their ability, each would send relief to the believers living in Judea; this they did, sending it to the elders by Barnabas and Saul.
Sounds pretty Old Testament to me. But notice how the people of God respond. In the OT, when prophets spoke all of this, the people either barely responded, or responded in overdramatic wailing and (temporary) repenting. This group of God’s people, however, indwelt with the Holy Spirit, proceed to act in light of the prophecy to seek human flourishing and societal good. This is the response that the prophets of old were looking for and never got.