Because they were behaving poorly, not that they needed to know more to be saved.
I was referring to their having allowed themselves having been swayed from what else Paul had obviously taught them - about the assurance of THEIR resurrection.
I just don't see Paul going into a synagogue, stating Christ died for your sins according to the Scriptures, was buried and rose again, according to the Scriptures, and leaving it at just those two statements.
The Lord took the Twelve through much more than that as to Who He was, in Luke 24, and the Bereans are said to have studied the Scriptures - not two passages - DAILY.
The issues addressed both in Galatians and the two Thessalonian epistles are both 1 Cor. 15: 3, 4 related issues.
Yet, in addressing them in connection with that, Paul writes far much more than 1 Cor. 15: 3, 4, to them - three entire epistles, to be exact.
1 Cor.15: 3, 4 are merely a summary of all that Paul preached concerning the dbr.
What - Romans 4 and 5 - two entire chapters more - are not a part of the end of Romans 3?
What - Romans 1:18-3:20 are not a part of Romans 3:21, to the end of the chapter?
You've never found yourself having to define sin to someone, via the Scriptures (plural)?
Someone once told me they believed in Christ died for their sins.
When I pressed them on that, it turned out they were Mormon.
Well, based on more than 1 Cor. 15: 3, 4, alone, I knew right off that the Christ they were professing to believe in is NOT the Christ Paul was referring to, in 1 Cor. 15: 3, 4.
I took them through Galatians, not through 1 Cor. 15..
I assert that 1 Cor. 15: 3, 4 is merely a summary reminder of the gospel of Christ to the Corinthians because it is very obvious in the balance of both Paul's epistles to them, and in the balance of Romans through Philemon, that Paul had taken great care to define what He had meant by "Christ," and by "sins," and so on.
Even the issue of whether or not Christ had actually died, been buried, and rose again was an issue that had to be addressed.
That is the very issue every single Israeli in that video I posted revealed him or herself being completely in the dark about.
Dealing with them on that would require much more than 1 Cor. 15: 3, 4.
Among the Jews even now, because they did neither understand those two verses, nor believe in their assertion.
And among the Gentiles because all they knew were their pagan idols...
Many today know next to nothing about Christ.
And apparantly, Paul had taught the following core distinctive not mentioned by him in 1 Cor. 15: 3, 4 - the core distinctive that Christ is the Son of God.
For when he brings that up, he does so as if he expects them to know what that means.
1 Corinthians 1:9 God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.
Called unto the fellowship of His Son - where is this Ephesians doctrine mentioned in 1 Cor. 15: 3, 4 (obviously meant to impact their understanding of THEIR resurrection)?
1 Corinthians 15:28 And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all.
There's that Son mention again, as if he expects them to know what he means by it.
And look at that, again it is evident he taught them Ephesians 1 truth - way before he wrote Ephesians, not mentioned by him in 1 Cor.15: 3, 4...
2 Corinthians 1:19 For the Son of God, Jesus Christ, who was preached among you by us, even by me and Silvanus and Timotheus, was not yea and nay, but in him was yea.
There it is, Paul himself asserting he and his fellow laborers had each preached Christ unto them as the Son of God.
Again, where is its' mention in 1 Cor. 15: 3, 4?
It's not - because those two passages are merely a summary as a reminder of much more that he had preached unto them that the gospel of Christ consists of.
Personally, I'm surprised my fellow nitpickers of such things (and rightly so, 2 Tim. 2:15) even have an issue with having this pointed out to them.
For years now, most debates on these FORUMS have been, and continue to be, over the many distinctive those two verses in 1 Cor. 15 are actually about.
"'Died for our sins' - what sins, I'm not that bad a person..."
'That is referring to this here...
Romans 5:12 Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned:
And what that is about is...
About much more than its mere mention, as a reminder to the Corinthians Paul had obviously distinctly defined the meaning of too...
For he mentions Christ having died for their sins as if he expects they - "the choir" - will know exactly what he means by that....
Acts 17:11, 12.