Characters
We’re not thieves. Well, we are thieves. Point is, we’re not takin’ what’s his. Now, we’ll stay out of his way as best we can from here on in. You explain that that’s best for everyone, okay?
— Mal · Firefly

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker denies being thieves, immediately admits it, then narrows the claim: whatever they take, it is not what belongs to this person. They promise to keep out of his way from now on and ask for the point to be relayed as best for everyone, a tidy self-justifying bargain.
Context reviewed