'Opened' in the Bible

“A river of fire was flowingAnd coming out from before Him;A thousand thousands were attending Him,And ten thousand times ten thousand were standing before Him;The court was seated,And the books were opened.

And behold, one who resembled the sons of men touched my lips. Then I opened my mouth and spoke and said to him who was standing before me, “O my lord, because of the vision anguish has come upon me, and I have retained no strength.