'Add' in the Bible

And who among you, [by] being anxious, is able to add one hour to his life span?

And which of you [by] being anxious is able to add an hour to his life span?

And to all these [things] [add] love, which is [the] bond of perfection.

I testify to everyone who hears the words of the prophecy of this book: if anyone adds to them, God will add to him the plagues written in this book.