Your apologetics friends here seem to be saying that Jesus gave the Gospel message exclusively to the apostles and that they then gave this message on to others that were of this exclusive club that was ordained of men to carry on the gospel message. I see the scriptures that you use seem to be creatively edited to exclude texts that seem to be in opposition to this notion. For instance they say “Although many Protestant pastors apply St. Paul’s words, “rightly divide the word of truth**,” to themselves, in fact, these words were written to St. Timothy specifically, not to the congregation in general. 2 Tim. 3:16-17 shows the relationship between the legitimate ambassador and Scripture:” ** Let’s take a look at 2Cor.5 and see who Paul is saying should be Christ’s ambassadors.
2Cor.5
14For the love of Christ constraineth us; because we thus judge, that if one died for all, then were all dead:
15And that he died for all, that they which live should not henceforth live unto themselves, but unto him which died for them, and rose again.
(It says here that Jesus died FOR ALL and they that live through Him should no longer live unto themselves)
16Wherefore henceforth know we no man after the flesh: yea, though we have known Christ after the flesh, yet now henceforth know we him no more.
17Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.
(In this verse we see that if ANY MAN be in Christ, he is a new creature.)
18And all things are of God, who hath reconciled us to himself by Jesus Christ, and hath given to us the ministry of reconciliation;
Ok, when Paul says here “God, who hath reconciled us to himself by Jesus Christ, and hath given to us the ministry of reconciliation;” The “us” is not this exclusive club to whom you refer. The “us” refers back to ANY MAN.
19To wit, that God was in Christ, reconciling the world unto himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.
(Again here we see that God was not committing the word of reconciliation to a select few but has committed the word of reconciliation to us “ANY MAN”)
20Now then we are ambassadors for Christ, as though God did beseech you by us: we pray you in Christ’s stead, be ye reconciled to God.
(The word “we” here again refers back not to an eclusive club of ordained priests, but to ANY MAN who has been renewed in Christ.)
21For he hath made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him.
So now “we” are ambassadors of Christ and God has committed to “us”, anyone who has been renewed in Christ, the ministry of reconciliation and this is not contingent upon being ordained by man, but being renewed in Christ. "that we might be made the righteousness of God in him."