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. (Acts 11:28 | NRSV)
Commenting on this verse and its implications for the Protestant doctrine of sola scriptura, one long-standing critic of this man-made doctrine wrote the following:
Acts 11:28 briefly describes one prophecy of Agabus but this is only in passing, and Scripture records none of the revelations of the other prophets that were with him. Surely they would not be called prophets if they had not received divine revelation. If one objects that these prophets were not apostles, we can point to the tongues and prophecies given to the church of Corinth in 1 Cor. 12-14 (cf., 1 Thess. 5:20; Eph. 2:20; 3:5; 4:11), of which Paul himself says that he speaks more than all the rest (1 Cor. 14:18). Where does Scripture record these tongues, along with their interpretations, and these prophecies? And even if they were recorded, where does Scripture distinguish between an inspired writing and an oral revelation that became inscripturated? To claim a distinction between the two without evidence that Scripture itself makes such a distinction is pure speculation. (Robert A. Sungenis, “Point/Counterpoint: Protestant Objections and Catholic Answers," in Not by Scripture Alone: A Catholic Critique of the Protestant Doctrine of Sola Scriptura, ed. Robert A. Sungenis [2d ed.: Catholic Apologetics International Publishing, 2013], 193-294, here, pp. 225-26, 217-18).