'God of Heaven' in the Bible

When I heard this, I sat down and cried, mourning for a number of days while I fasted and prayed in the presence of the God of Heaven.

I said, "Please, LORD, God of Heaven, the great and fearsome God who keeps the covenant, showing gracious love to those who love you and keep your commands,

So I prayed to the God of heaven and I replied to the king, "If it seems good to you, and if your servant has found favor with you, would you send me to Judah, to the city where my ancestral sepulchers are located, so I can rebuild it?"

In reply to them, I said, "The God of Heaven will prosper us. That's why we're preparing to build. But as far as you're concerned, there exists no ancestral heritage, no legal right, nor any historic claim in Jerusalem.