'Forty four' in the Bible

And I heard the number of the ones who were sealed, one hundred forty-four thousand sealed from every tribe of the sons of Israel:

And I looked, and behold, the Lamb standing on Mount Zion, and with him one hundred forty-four thousand who had his name and the name of his Father written on their foreheads.

And they were singing [something] like a new song before the throne and before the four living creatures and the elders, and no one was able to learn the song except the one hundred forty-four thousand who had been bought from the earth.

And he measured its wall, one hundred forty-four cubits {according to human measure}, which is the angel's.