If a man ... purge himself from these - The Greek expresses “If one (for example, thou, Timothy) purify himself (so as to separate) from among these” (vessels unto dishonor).
sanctified - set apart as wholly consecrated to the Lord.
and meet - Some oldest manuscripts omit “and.”
the master’s - the Lord’s. Paul himself was such a vessel: once one among those of earth, but afterwards he became by grace one of gold.
prepared unto every good work - (2Ti 3:17; Tit 3:1). Contrast Tit 1:16.