Everything vs. All Things
'Everything' is a singular indefinite pronoun. 'All things' is a plural noun phrase. Judging by this fact, let's go through their similarities and differences.
'Everything' is an indefinite pronoun and 'all things' is a noun phrase that is rarely used. They have somewhat similar meanings but they are not 100% the same.
What Is The Difference?
'All things' is plural. It refers to all of the things we are talking about.
It must be used with a plural verb.
When This Difference Matters?
Another difference between 'everything' and 'all things' is basically related to academic and formal English and it does not apply to informal or spoken English.
- 'Everything' takes away the sense of individuality of things.
- 'All things' keeps the sense of individuality of things.
If you are writing a technical text, this difference may matter.
Here, it means that each item is recovered as an individual.
Here, it means that a single act of recovery is done, as opposed to the above example in which multiple acts of recovery were performed.