What does the Bible say about the God of the heavens?

In the biblical account from Ezra 1:2-4, the God of the heavens is introduced through the proclamation of Cyrus, the king of Persia. He recognizes that Jehovah, the God of Israel, has given him authority over the kingdoms of the earth and commands the rebuilding of God's house in Jerusalem. This emphasizes God's sovereignty and His role as the ultimate ruler over all creation, executing His divine will over earthly kingdoms. The text highlights that God's acts are entwined with His mercy, demonstrating that even a king from a pagan nation can serve God's purpose.