'Open' in the Bible

‘I know your deeds. Behold, I have put before you an open door which no one can shut, because you have a little power, and have kept My word, and have not denied My name.

After these things I looked, and behold, a door standing open in heaven, and the first voice which I had heard, like the sound of a trumpet speaking with me, said, “Come up here, and I will show you what must take place after these things.”

And I saw a strong angel proclaiming with a loud voice, “Who is worthy to open the book and to break its seals?”

And no one in heaven or on the earth or under the earth was able to open the book or to look into it.

Then I began to weep greatly because no one was found worthy to open the book or to look into it;

and one of the elders *said to me, “Stop weeping; behold, the Lion that is from the tribe of Judah, the Root of David, has overcome so as to open the book and its seven seals.”

and he had in his hand a little book which was open. He placed his right foot on the sea and his left on the land;

Then the voice which I heard from heaven, I heard again speaking with me, and saying, “Go, take the book which is open in the hand of the angel who stands on the sea and on the land.”