'Itself' in the Bible

What is going to happen to us? Our brothers have drained away our courage by describing people who are more numerous and taller than we are, and great cities whose defenses appear to be as high as heaven itself! Moreover, they said they saw Anakites there."

so that your days and those of your descendants may be extended in the land which the Lord promised to give to your ancestors, like the days of heaven itself.

However, by no means eat the blood, for the blood is life itself -- you must not eat the life with the meat!

One must not take either lower or upper millstones as security on a loan, for that is like taking a life itself as security.