Even though some of the people that wrote some of the books in the bible did not physically meet Christ, they were chosen by God and had been given the power of the Holy Spirit and authority to write the scriptures. Most of them live in different eras and if you would study the word and notice it, all of the scriptures are in sync. Anyways, it's nice to read the gospel but at the end of the day if you have not accepted the Lord Jesus Christ and asked Him to be the Lord of your life, it's useless.