'Forty four' in the Bible

And I heard the number of the sealed, a hundred and forty-four thousand, sealed out of every tribe of the sons of Israel.

And I saw, and, behold, the Lamb, standing on the mount Zion, and with Him a hundred and forty-four thousand, having His name, and the name of His Father, written on their foreheads.

And they sing as it were 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 hundred and forty-four thousand, who had been purchased out of the earth.

And he measured its wall a hundred and forty-four cubits, a man's measure, that is, an angel's.