How do we know Nebuchadnezzar's confession of God is genuine?

Nebuchadnezzar's confession found in Daniel 4 is compelling, reflecting his genuine recognition of God’s sovereignty and mercy. The progression from initially viewing God as another deity among many to proclaiming that the 'high God hath wrought toward me' illustrates a significant spiritual transformation. He acknowledges God's authority not just in his life, but also in the governance of all nations and peoples. This change is underlined by Daniel’s interpretation of his dreams, showing a direct communion with the one true God, which ultimately leads Nebuchadnezzar to declare that God's kingdom is everlasting, signaling a sincere belief and respect for God's omnipotence.