'None' in the Bible

As it is written and forever remains written,“There is none righteous [none that meets God’s standard], not even one.

So what benefit did you get at that time from the things of which you are now ashamed? [None!] For the outcome of those things is death!

However, you are not [living] in the flesh [controlled by the sinful nature] but in the Spirit, if in fact the Spirit of God lives in you [directing and guiding you]. But if anyone does not have the Spirit of Christ, he does not belong to Him [and is not a child of God].

None of us lives for himself [for his own benefit, but for the Lord], and none of us dies for himself [but for the Lord].

I know and am convinced [as one] in the Lord Jesus that nothing is unclean [ritually defiled, and unholy] in itself; but [nonetheless] it is unclean to anyone who thinks it is unclean.