'Mid heaven' in the Bible

And I looked, and I heard one eagle flying in mid-heaven, saying in a great voice, Woe, woe, woe, to those who dwell on the earth from the remaining sounds of the trumpet of the three agents who are going to sound.

And I saw an agent flying in mid-heaven having eternal good-news to proclaim to those who sit on the earth, and to every nation and tribe and tongue and people,

And I saw one agent having stood in the sun, and he cried out in a great voice, saying to all the birds flying in mid-heaven, Come, gather together to the great supper of God,