'Open' in the Bible

Now when I came to Troas for the good news of Christ, and there was an open door for me in the Lord,

You yourselves are our letter, whose writing is in our heart, open for every man's reading and knowledge;

Our mouth is open to you, O Corinthians, our heart is wide.

Now to give me back payment of the same sort (I am talking as to my children), let your hearts be wide open to me.

Let your hearts be open to us: we have done no man wrong, no man has been damaged by us, we have made no profit out of any man,