The theme of Amos' prophecies centers on the punishment of evil. In the Bible, Amos was a prophet who warned the people of Israel about God's judgment because of their wickedness and unfaithfulness. He condemned their social injustice, idolatry, and religious hypocrisy, and predicted that God would punish them for their sins. Amos emphasized the importance of repentance and turning back to God before it was too late. Therefore, his message was primarily about the consequences of disobedience to God's laws and the need to seek forgiveness and righteousness.