'Heaven' in the Bible

"Thus says King Cyrus of Persia: "'The Lord God of heaven has given me all the kingdoms of the earth. He has instructed me to build a temple for him in Jerusalem, which is in Judah.

They responded to us in the following way: 'We are servants of the God of heaven and earth. We are rebuilding the temple which was previously built many years ago. A great king of Israel built it and completed it.

But after our ancestors angered the God of heaven, he delivered them into the hands of King Nebuchadnezzar of Babylon, the Chaldean, who destroyed this temple and exiled the people to Babylon.

Whatever is needed -- whether oxen or rams or lambs or burnt offerings for the God of heaven or wheat or salt or wine or oil, as required by the priests who are in Jerusalem -- must be given to them daily without any neglect,

so that they may be offering incense to the God of heaven and may be praying for the good fortune of the king and his family.

"Artaxerxes, king of kings, to Ezra the priest, a scribe of the perfect law of the God of heaven:

"I, King Artaxerxes, hereby issue orders to all the treasurers of Trans-Euphrates, that you precisely execute all that Ezra the priestly scribe of the law of the God of heaven may request of you --

Everything that the God of heaven has required should be precisely done for the temple of the God of heaven. Why should there be wrath against the empire of the king and his sons?