'High God' in the Bible

Then Nebuchadnezzar came near to the mouth of the burning fiery furnace, and spoke, and said, Shadrach, Meshach, and Abednego, you servants of the most high God, come forth, and come here. Then Shadrach, Meshach, and Abednego, came forth out of the midst of the fire.

I thought it good to show the signs and wonders that the most high God has worked for me.

O king, the most high God gave Nebuchadnezzar your father a kingdom, and majesty, and glory, and honor:

And he was driven from the sons of men; and his heart was made like the beasts, and his dwelling was with the wild donkeys: they fed him with grass like oxen, and his body was wet with the dew of heaven; till he knew that the most high God ruled in the kingdom of men, and that he appoints over it whomever he will.