'Within' in the Bible

and the four living creatures, having each one of them six wings, are full of eyes round about and within: and they have no rest day and night, saying, Holy, holy, holy, is the Lord God, the Almighty, who was and who is and who is to come.

And I saw in the right hand of him that sat on the throne a book written within and on the back, close sealed with seven seals.