Amos is the book of the herdsman from Tekoa, a small town in Judah. He receives a direct call from God to prophesy against the unrighteousness of both Judah and Israel. Amos is the first prophet to proclaim that God is the ruler of the whole world.

Amos 6

6:14 But, behold, I will raise up against you a nation, O house of Israel, saith the LORD the God of hosts; and they shall afflict you from the entering in of Hemath unto the river of the wilderness.