'God of Heaven' in the Bible

When I heard these things I sat down abruptly, crying and mourning for several days. I continued fasting and praying before the God of heaven.

Then I said, "Please, O LORD God of heaven, great and awesome God, who keeps his loving covenant with those who love him and obey his commandments,

The king responded, "What is it you are seeking?" Then I quickly prayed to the God of heaven

I responded to them by saying, "The God of heaven will prosper us. We his servants will start the rebuilding. But you have no just or ancient right in Jerusalem."