Revelation 21:17

He measured the wall and it was about 144 cubits (216 feet), as men measure, for that was the way the angel measured.

Revelation 7:4

I heard that the number of those that were marked with the seal was 144,000. They were from every tribe of the children of Israel:

Revelation 13:18

There is wisdom hidden here! Let everyone of intelligence calculate the animal's number, for it indicates a certain man; its number is 666.

Revelation 14:3

They were singing a new song before the throne and the four animals and the elders, and no one could learn the song except the 144,000 who had been ransomed from the earth.

Revelation 21:9

Then one of the seven angels who had the seven bowls full of the seven last plagues came and spoke to me. "Come," he said, "I will show you the bride, the wife of the Lamb."

Treasury of Scripture Knowledge

Summary

And he measured the wall thereof, an hundred and forty and four cubits, according to the measure of a man, that is, of the angel.

Bible References

An

Revelation 7:4
I heard that the number of those that were marked with the seal was 144,000. They were from every tribe of the children of Israel:
Revelation 14:3
They were singing a new song before the throne and the four animals and the elders, and no one could learn the song except the 144,000 who had been ransomed from the earth.