'God of Heaven' in the Bible

And it happened when I heard these words, I sat down and wept. And I mourned for days, and fasted, and prayed before the God of Heaven.

And I said, I pray You, O Jehovah, the God of Heaven, the great and awesome God who keeps covenant and mercy for those who love Him and keep His commandments;

And the king said to me, For what do you ask? So I prayed to the God of Heaven,

And I answered them and said to them, The God of Heaven, He will bless us, and we, His servants, will arise and build. But you have no portion or right or memorial in Jerusalem.