Revelation 4:6

4:6 and in front of the throne was something like a sea of glass, like crystal.

In the middle of the throne and around the throne were four living creatures full of eyes in front and in back.

Revelation 7:17

7:17 because the Lamb in the middle of the throne will shepherd them and lead them to springs of living water, and God will wipe away every tear from their eyes.”

Revelation 22:2

22:2 flowing down the middle of the city’s main street. On each side of the river is the tree of life producing twelve kinds of fruit, yielding its fruit every month of the year. Its leaves are for the healing of the nations.