'High God' in the Bible

Then Nebuchadnezzar came near to the mouth of the burning fiery furnace, and spoke, and said, Shadrach, Meshach, and Abed-nego, ye servants of the most high God, come forth, and come hither. Then Shadrach, Meshach, and Abed-nego, came forth from the midst of the fire.

I thought it good to show the signs and wonders that the high God hath wrought towards me.

O thou king, the most high God gave Nebuchadnezzar thy 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 asses: 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 ruleth in the kingdom of men, and that he appointeth over it whomsoever he will.