'High God' in the Bible

Then Nebuchadnezzar came near to the mouth of the burning fiery furnace. He spoke and said, Shadrach, Meshach, and Abednego, ye servants of the Most High God, come forth, and come here. Then Shadrach, Meshach, and Abednego came for

It has seemed good to me to show the signs and wonders that the Most High God has wrought toward me.

O thou king, the Most High God gave Nebuchadnezzar thy father the kingdom and greatness and glory and majesty.