Matthew 27:52 The bodies of many holy people who had died were raised to life. [some translations say ‘saints’]
Those were faithful followers of God from the Old Testament who trusted in the “coming Messiah” as it had been prophesied.
>> I also include the apostles, martyrs and those who died before the Bible was canonized<<
Canonization had nor has anything to do with it. All the assemblies had the teachings of the apostles with many already having the written text. Peter said Paul’s writings were already considered scripture.
2 Peter 3:15 As also our beloved brother Paul wrote to you, according to the wisdom given him, 16 as in all his letters, speaking concerning these matters, in which some things are hard to understand, which those who are untaught and unstable twist to their own destruction, as they do also THE OTHER SCRIPTURES. 17 You then, beloved ones, being forewarned, watch lest you also fall from your own steadfastness, being let away with the delusion of the lawless.
To claim they “never even heard of the Bible”, denies what scripture teaches in that all that is contained in the Bible was already know by them.
>>”including Jewish people who only accept just parts”<<
If they don’t accept Jesus as their savior and trust in Him alone they will not be saved.