Dark Knight said:
If, btw, u were to lie and perpetuate a lie to people, say with a group of others, you would get together with them and MAKE SURE your every little detail agreed and u would tell the story in MUCH the same manner. God does NOT do this in the gospels, obviously. So any descrepancies tend to validate them rather than discredit them, for that very reason.
The 4 gospels included in the NT weren't all written at the same time, though, or in the order found in the NT. The dates they were actually written and the actual authors aren't known, but there is speculation about them.
Mark, thought to be the earliest gospel in the NT, from the mid-60's CE, may have used the apostle Peter as his source; Matthew, who may have been the apostle, seems to have written his gospel in the late 60's. Luke, who seems to be a gentile, may have been a traveling companion of the apostle Paul (and probably also wrote Acts); John may have been the apostle John, and his gospel appears to be written around 90.
Mark, Luke, and Matthew are the synoptics and do tell some of the same stories in much the same way. John varies considerably from those 3, and includes stories not found in the synoptics at all.
None are written in the first person.
Luke begins his gospel with a dedication to Theophilus, who may have hired Luke to undertake the writing.
"Many have undertaken to compile a narrative about the events that have been fulfilled among us, just as the original eyewitnesses and servants of the word handed them down to us. It also seemed good to me, since I have carefully investigated everything from the very first, to write to you in orderly sequence, most honorable Theophilus, so that you may know the certainty of the things about which you have been instructed." The indication is that many others than Luke had written gospel accounts previously, although they have not survived.