5:20

we are ambassadors: Paul is here speaking of himself and his fellow workers as “ambassadors substituting for Christ.” In Bible times, ambassadors and other messengers could be dispatched for several reasons. For example, during periods of hostility, ambassadors were dispatched to see if warfare could be averted or to arrange terms for peace where a state of war prevailed. (Isa 30:1-4; 33:7) In Paul’s day, peoples, cities, or provinces of the Roman Empire would send ambassadors to Rome to reinforce friendship, to receive assistance, or to plead for some cause. The Greek verb for “to be (act as) an ambassador” (pre·sbeuʹo) appears twice in the Christian Greek Scriptures, here and at Eph 6:19, 20, where Paul speaks of himself as an ambassador for the good news. At Lu 14:32 and 19:14, the related noun pre·sbeiʹa is rendered “body of ambassadors.” Both of these words are related to the word pre·sbyʹte·ros, meaning “older man; elder.”​—Mt 16:21; Ac 11:30.

substituting for Christ: Or “instead of Christ; in the name of Christ.” After Christ was resurrected to heaven, his faithful followers were appointed to act in his place, as “ambassadors substituting for Christ.” They were first sent to the Jews and then to people of the nations, all of whom were alienated from the Supreme Sovereign, Jehovah. These anointed Christians serve as ambassadors to a world not at peace with God. (Joh 14:30; 15:18, 19; Jas 4:4) In Paul’s letter to the Ephesians, written during his first imprisonment in Rome (c. 59-61 C.E.), he described himself as “an ambassador in chains.”​—Eph 6:20.