We are tasked to preach the gospel. It is very important that we preach the true gospel.
Matthew 24:14 And this gospel of the kingdom will be preached in the whole world as a testimony to all nations, and then the end will come.
Paul warned about the danger of preaching a gospel other than the one they, the apostles preached Galatians 1:6-9 I am astonished that you are so quickly deserting the one who called you by the grace of Christ and are turning to a different gospel—which is really no gospel at all. Evidently some people are throwing you into confusion and are trying to pervert the gospel of Christ. But even if we or an angel from heaven should preach a gospel other than the one, we preached to you, let him be eternally condemned! 9As we have already said, so now I say again: If anybody is preaching to you a gospel other than what you accepted, let him be eternally condemned!
This course firstly will lead students to look closely into key scriptures that teach the content of the true gospel centered on the Lord Jesus. Secondly, lead them to carefully serious efforts of the New Testament Church to preserve the true gospel, Consequent to this is a study of the arguments Paul presented in his letter to the Galatians in defense of the gospel he preached.