Matthew, Mark, Luke, and John are very similar, but they also told the story of Jesus through their own eyes. For example, Luke was a physician and Matthew was a tax collector before Jesus called them to follow Him. Some of it is repetitive, but then there are things shared in one or two of them that the others don't have. For example, the genealogy of Jesus is found in both Matthew and Luke, but not Mark and John. The temptation of Jesus by the Devil is mentioned in Mark, but is found in greater detail in Matthew and Luke.

Every book of the Bible is the inspired (God-breathed) Word of God, (2 Timothy 3:16). Men wrote it, but through the leading and guiding of the Holy Spirit of God.

No need to apologize! We all had to start at some point and learn as we go. Please reach out with any questions you may have. I'll do my best to answer them. I'm not a Bible theologian, but just a mom and new grandma.