Many professing Christians cannot fully tell you what the Gospel is. It seems the only answer they can give is to quote 1 Cor. 15:1-4.
“Now I make known to you brethren, the gospel which I preached to you, which also you received, in which also you stand, by which also you are saved, if you hold fast the word which I preached to you, unless you believed in vain. For I delivered to you as of first importance what I also received, that Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures . . . ”
They say THAT is the whole Gospel. Well, not really. Notice what Paul says,
“For I delivered to you AS OF FIRST IMPORTANCE…”
Now why would Paul start off like that? Because there is much more to the story than Christ dying and raised from the dead, but since this chapter has to do with the resurrection, this is his main focus for the rest of the chapter. If the dead are not raised, then our preaching is useless and so is our faith. If Christ is not raised, our faith is simply foolish.
I’ll tell you why.
Because the Gospel of the Kingdom of God is about God’s immortality plan for human beings in the Kingdom to come which all will “inherit the earth.” (Psa_37:9; Psa_37:11; Psa_37:22; Mat_5:5)
The one major element of the Gospel that most people leave out is the Kingdom of God. Jesus came preaching the Gospel (Good News) about this kingdom and was the main purpose for which he was sent.
“I must preach the good news of the kingdom of God to the other towns as well; for I was sent for this purpose.” Luke 4:43
Jesus sent his disciples (seventy others – Luke 10:1-12) to preach this gospel before any of them knew about the death, burial, and resurrection of Jesus (which of course, later became part of the gospel…good news!). The disciples preached this gospel. (See Matt. 4:17; 4:23; 9:35; Luke 4:43; 8:1; 9:11, and also read how Jesus always spoke about the Kingdom of God before and after the cross (Acts 1:3).
Heb. 2:3, along with many other verses, attest that Jesus is the first preacher of immortality. Even Paul tells us that Jesus,
“brought life and immortality to light through the Gospel.” (2 Tim. 1:10)
Jesus is our preacher who showed us by his example and told us how we can eventually live forever. People must repent and believe this gospel about the kingdom of God.
Paul spent two years in his own hired house and,
“welcomed all who came in to him, proclaiming the kingdom of God, and teaching those things concerning the Lord Jesus Christ, with all freedom, and without hindrance.” (Acts 28:30-31)
So to sum it up, the mission statement of Jesus reveals his whole purpose, i.e., to preach the GOOD NEWS about the Kingdom of God and how to gain immortality in that Kingdom.
The devil wants to blind the eyes and promote lies that being disobedient to God will not lead to death (Gen. 3:4) But for those who believe the Gospel of the Kingdom of God and do as Jesus instructs us, though they die physically, will one day be resurrected to a life of immortality, just as Christ was.
The Kingdom of God will be inaugurated by the return of Jesus to resurrect the faithful of all ages (who are still dead in their graves) to a life of immortality.
“Do not marvel at this, for the hour is coming in which all who are in the graves shall hear His voice, and shall come forth, those who have done good to the resurrection of life, and those who have practiced evil to the resurrection of condemnation” (John 5:28-29).