Revelation 11:1

Then I was given a measure like a rod, and a voice said to me-- 'Go and measure the Temple of God and the altar, and count the worshiper there.

Revelation 21:15

And the angel who was speaking to me had as a measure a gold rod, with which to measure the City and its gates and its wall.

Treasury of Scripture Knowledge

Summary

Thus he shewed me: and, behold, the Lord stood upon a wall made by a plumbline, with a plumbline in his hand.

Bible References

A wall

Revelation 11:1
Then I was given a measure like a rod, and a voice said to me-- 'Go and measure the Temple of God and the altar, and count the worshiper there.
Revelation 21:15
And the angel who was speaking to me had as a measure a gold rod, with which to measure the City and its gates and its wall.