Revelation 11:1

AND there was given me a cane like a measuring staff; and the angel stood by, saying, Arise, and measure the temple of God, and the altar, and those who worship therein.

Revelation 21:15

And he that talked with me held a golden cane to measure the city, and the gates thereof, and the wall thereof.

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
AND there was given me a cane like a measuring staff; and the angel stood by, saying, Arise, and measure the temple of God, and the altar, and those who worship therein.
Revelation 21:15
And he that talked with me held a golden cane to measure the city, and the gates thereof, and the wall thereof.