'God of Heaven' in the Bible

and [told them] to seek mercy {from the God of heaven} concerning this mystery, so that Daniel and his companions, along with the remainder of the wise men of Babylon, would not be killed.

Then in a vision of the night the mystery was revealed to Daniel; then Daniel blessed the God of heaven.

You, O king, the king of kings, to whom the God of heaven has given the kingdom, the power and the might and the glory,

And {in the day of those kings}, the God of heaven will set up a kingdom that will {never} be destroyed, and the kingdom will not be left for another nation, and it will bring an end to all these kingdoms, but it will stand {forever}.