Here's why Nathan's role is significant:
* He acts as God's mouthpiece: Nathan is chosen by God to deliver a message to David, exposing his sin and the consequences he will face.
* He uses a parable to reveal David's guilt: Nathan cleverly uses a story about a rich man taking a poor man's lamb to highlight the injustice of David's actions. David recognizes his own sin in the parable, allowing Nathan to confront him directly.
* He pronounces God's judgment: Nathan tells David that God will punish him for his sin, and the consequences will affect his family and his kingdom.
Nathan's role in 2 Samuel 12 is crucial in showing the severity of David's sin and the consequences that follow. It also demonstrates the importance of accountability and justice, even for kings.