'Two and a half' in the Bible

"And they will make an ark of acacia wood, two and a half cubits its length and a cubit and a half its width and a cubit and a half its height.

"And you will make an atonement cover of pure gold, two and a half cubits its length and a cubit and a half its width.

And Bezalel made the ark of acacia wood, two and a half cubits its length and a cubit and a half its width and a cubit and a half its height.

And he made an atonement cover of pure gold, two and a half cubits its length and a cubit and a half its width.

The two and a half tribes have taken their inheritance from beyond the Jordan [across] Jericho, east toward the sunrise."