'Heaven' in the Bible

"Thus says Cyrus king of Persia, 'Yahweh, the God of heaven, has given me all the kingdoms of the earth; and he has commanded me to build him a house in Jerusalem, which is in Judah.

Thus they returned us answer, saying, "We are the servants of the God of heaven and earth, and are building the house that was built these many years ago, which a great king of Israel built and finished.

But after that our fathers had provoked the God of heaven to wrath, he gave them into the hand of Nebuchadnezzar king of Babylon, the Chaldean, who destroyed this house, and carried the people away into Babylon.

That which they have need of, both young bulls, and rams, and lambs, for burnt offerings to the God of heaven; [also] wheat, salt, wine, and oil, according to the word of the priests who are at Jerusalem, let it be given them day by day without fail;

that they may offer sacrifices of pleasant aroma to the God of heaven, and pray for the life of the king, and of his sons.

Artaxerxes, king of kings, to Ezra the priest, the scribe of the law of the God of heaven, perfect and so forth.

I, even I Artaxerxes the king, do make a decree to all the treasurers who are beyond the River, that whatever Ezra the priest, the scribe of the law of the God of heaven, shall require of you, it be done with all diligence,

Whatever is commanded by the God of heaven, let it be done exactly for the house of the God of heaven; for why should there be wrath against the realm of the king and his sons?