## unspiritual person ##
the non-Christian person, who has not received the Holy Spirit.
## because they are spiritually discerned ##
"because understanding these things requires the aid of the Spirit"
## The one who is spiritual ##
AT: "the believer, who has received the Spirit.
## For who can know the mind of the Lord, that he can instruct him? ##
Paul used this question to emphasize that no one knows the mind of the Lord. AT: "No one can know the mind of the Lord. Thus, no one can teach him anything he doesn't already know." (See: [[rc://en/ta/man/translate/figs-rquestion]])