I Am Not Leaving in Chinese / Japanese...

尊重忠誠誠實 is a “word list” consisting of “Respect/Loyalty/Honesty.”

Word lists are not as common in Chinese as they are in English but leaving that concern behind, this has a good meaning.

If you want to customize it more, add an inscription with your wedding date or names (just a small extra fee for translation).

Note: Because these are three separate words, the calligrapher may be inclined to leave a small space between each two-character word. Let us know if you have any preference when you place your order.

空無 is “nothingness” in a Buddhist context.

The first character means empty but can also mean air or sky (air and sky have no form).

The second character means have not, no, none, not, or to lack.

Together these characters reinforce each other into a word that means “absolute nothingness.”

I know this is a term used in Buddhism, but I have not yet figured out the context in which it is used. I suppose it can be the fact that Buddhists believe that the world is a non-real illusion, or perhaps it's about visualizing yourself as “nothing” and therefore leaving behind your desire and worldliness.
Buddhist concepts and titles often have this element of ambiguity or, rather, “mystery.” Therefore, such ideas can have different meanings to different people, and that's okay. If you don't get it right in this lifetime, there will be plenty more lifetimes to master it (whatever “it” is, and if “it” really exists at all).

Soothill defines this as “Unreality, or immateriality, of things, which is defined as nothing existing of independent or self-contained nature.”