What was a key characteristic of the prophetic messages in the Old Testament?

The prophetic messages in the Old Testament are often characterized by a strong emphasis on social reform. The prophets were tasked with calling the people of Israel back to a covenant relationship with God, which included adherence to ethical and moral standards that often pertained to social justice. They denounced injustices, such as the oppression of the poor and the corrupt practices of those in power, urging the people to live righteously and care for one another.

The focus on social reform is depicted in the messages of various prophets, such as Amos and Micah. For instance, Amos condemned economic exploitation and called for justice to "roll down like waters," while Micah famously articulated that what God requires of humanity is to act justly, love mercy, and walk humbly. This focus not only served as a critique of the society in which they lived but also reinforced the idea that true worship of God was intrinsically linked to social ethics and communal responsibility.

In contrast, the other options do not encapsulate the central theme of the prophetic messages as effectively. While there are instances of condemnation directed toward foreign nations or promises related to wealth, these themes are secondary compared to the overarching call for reform and righteousness within Israel itself.