Amos

Amos was a herdsman and a gatherer of sycamore fruit, not a prophet, nor even the son of a prophet. The Lord took him from following the flock and instructed him to prophesy—“Go, prophesy unto my people Israel” (Amos 7:14-15). The language employed by Amos reflects his former occupation; beautifully the Lord fits the vessel for His own use.
Amos speaks of judgment, but if God is going to judge, He will warn His people first. “Shall a trumpet be blown in the city, and the people not be afraid? shall there be evil in a city, and the LORD hath not done it? Surely the Lord GOD will do nothing, but he revealeth his secret unto his servants the prophets. The lion hath roared, who will not fear? the Lord GOD hath spoken, who can but prophesy?” (Amos 3:6-8). In keeping with this message, Amos begins his prophecy two years before the earthquake (Amos 1:1), doubtless the same event mentioned by Zechariah (Zech. 14:5).
The first two chapters comprise a single prophecy; the remaining chapters are separate prophecies. Beginning with the nations that have occupied the land of Israel—Syria, Gaza and Philistia, Tyre, Edom, Ammon, and Moab—and ending with Israel and Judah, judgment is pronounced. The nations are judged for their treatment of Israel. Judah is judged for having despised the law of the Lord (Amos 2:4) and Israel for not walking in the fear of the Lord and having profaned His holy name (Amos 2:6-8). Our walk should agree with our position: “Can two walk together, except they be agreed?” (Amos 3:3). Though Amos prophesied in Israel—the ten tribes (Amos 7:10-13)—both Israel and Judah are addressed: “the whole family which I brought up from the land of Egypt” (Amos 3:1).
God had born with them in patience; He could no longer (Amos 7:8), for the fruits of the summer must be consumed when ripe (Amos 8:1-2). A righteous remnant would be preserved (Amos 3:12; 9:9-10). God would raise them up again; they would make gardens and eat the fruit of them. He would plant them in the land, and they would no more be pulled up (Amos 9:14-15).