'Open' in the Bible

"And to the angel of the church in Philadelphia write: "This is what the holy one, the true one, the one who has the key of David, the one who opens and no one can shut, and who shuts and no one can open, says:

After these [things] I looked, and behold, an open door in heaven, and the former voice that I had heard like a trumpet speaking with me was saying, "Come up here and I will show you [the things] which must take place after these [things]."

And I saw a powerful angel proclaiming with a loud voice, "Who [is] worthy to open the scroll and to break its seals?"

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

And I began to weep loudly because no one was found worthy to open the scroll or to look into it.

And one of the elders said to me, "Do not weep! Behold, the lion of the tribe of Judah, the root of David, has conquered, so that he can open the scroll and its seven seals.

And they were singing a new song, saying, "You are worthy to take the scroll and to open its seals, because you were slaughtered, and bought [people] for God by your blood from every tribe and language and people and nation,