'Open' in the Bible

And Hannah, in prayer before the Lord, said, My heart is glad in the Lord, my horn is lifted up in the Lord: my mouth is open wide over my haters; because my joy is in your salvation.

Now the young Samuel was the servant of the Lord before Eli. In those days the Lord kept his word secret from men; there was no open vision.

So Eli said to Samuel, Go back: and if the voice comes again, let your answer be, Say on, Lord; for the ears of your servant are open. So Samuel went back to his bed.

Then the Lord came and said as before, Samuel, Samuel. Then Samuel made answer, Say on, Lord; for the ears of your servant are open.

And Jonathan said to David, Come, let us go out into the country. And the two of them went out together into the open country.

That all of you have made designs against me, and not one of you gave me word when my son made an agreement with the son of Jesse, and not one of you has pity for me or has made my eyes open to the fact that my servant has been moved by my son against me, as at this day?