Amos 3:8 in the King James Version
The lion hath roared, who will not fear? the Lord GOD hath spoken, who can but prophesy?
Context
7 Surely the Lord GOD will do nothing, unless he reveals his secret to his servants the prophets.
8 The lion has roared. Who will not fear? The Lord GOD has spoken. Who can but prophesy?
9 Proclaim in the palaces at Ashdod, and in the palaces in the land of Egypt, and say, “Assemble yourselves on the mountains of Samaria, and see what unrest is in her, and what oppression is among them.”