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

6:1 Woe to them that are at ease in Zion, and trust in the mountain of Samaria, which are named chief of the nations, to whom the house of Israel came!