What are the lost books of the Bible? They were texts and letters suppressed by early "Church Fathers". There was an important historical event, back in the 4th century. It is called the Council of Laodicea. It changed history two significant ways. At this council they determined what would and would not be considered canon. They decided what would and would not be included in the Bible or read at church. (Canon #60.)
It gets interesting when you consider the second implication of what was published. They published, in total, 60 cannons at this council, thus codifying church doctrine. During the 2nd and 3rd centuries, Christians were in the habit of keeping both Saturday and Sunday. In fact Ethiopian Christians still do today. During that time, Christians rested on the Sabbath (in the Lord) and had communion or fellowship on Sundays. The Church fathers at the Council of Laodicea were not opposed to Sunday services but were opposed to Christians Judaizing the Sabbath (see 29th Canon), Judaizing is what they labled Christians resting on the Sabbath day. At the Coucil of Laodicea, they published as doctrine that the practice of staying at home and resting on the Sabbath was sinful and anathema to Christ.
Satan managed to deceive well intentioned men to ignore the most important day of all. The day of having God dwell in the hearts of men! The true meaning of the Sabbath! If you read The Epistle of Barnabus, Chapter 13, you will see why in light of the 29th Canon they had to ban the text from the New Testament. There are sources today that quote the Epistle of Barnabus to justify going to Church on Sunday, but they completely miss the fact the text explains why one shouldn't trust going to a building made of hands as part of Sabbath worship. That is not how to obey God and keep the Sabbath. (Lev 23:3, Sabbath is to be kept in one's dwelling) The Church Fathers couldn't ban Sabbath keeping and then allow a text to become canon that admonishes Christians on the proper way to keep the Sabbath!"
CHRISTIANS must not judaize by resting on the Sabbath, but must work on that day, rather honouring the Lord's Day; and, if they can, resting then as Christians. But if any shall be found to be judaizers, let them be anathema from Christ.
THESE are all the books of Old Testament appointed to be read: 1, Genesis of the world; 2, The Exodus from Egypt; 3, Leviticus; 4, Numbers; 5, Deuteronomy; 6, Joshua, the son of Nun; 7, Judges, Ruth; 8, Esther; 9, Of the Kings, First and Second; 10, Of the Kings, Third and Fourth; 11, Chronicles, First and Second; 12, Esdras, First and Second; 13, The Book of Psalms; 14, The Proverbs of Solomon; 15, Ecclesiastes; 16, The Song of Songs;17, Job; 18, The Twelve Prophets; 19, Isaiah; 20, Jeremiah, and Baruch, the Lamentations, and the Epistle; 21, Ezekiel; 22, Daniel.
And these are the books of the New Testament: Four Gospels, according to Matthew, Mark, Luke and John; The Acts of the Apostles; Seven Catholic Epistles, to wit, one of James, two of Peter, three of John, one of Jude; Fourteen Epistles of Paul, one to the Romans, two to the Corinthians, one to the Galatians, one to the Ephesians, one to the Philippians, one to the Colossians, two to the Thessalonians, one to the Hebrews, two to Timothy, one to Titus, and one to Philemon.
Books banned by the Council of Laodicea
Christ and Abgarus
The Apostles' Creed
Paul and Seneca
Paul and Thecla
Letters of Herod and Pilate
The Second Book of Adam and Eve
The Secrets of Enoch
The Psalms of Solomon
The Odes of Solomon
The Fourth Book of Maccabees
The Story of Ahikar
The Testament of Reuben
60 Canons of the Synod of Laodicea
Sabbath: Sacred Rehearsal
The Epistle of Barnabus, Chapter 13
Sabbath through History
History of The Bible
Catholic Encyclopedia: Sunday
Catholic Mirror reprints: Rome’s Challenge
The Council of Laodicea
The Council of Laodicea -- History Of The Church
From Sabbath to Sunday
Constantine: Friend of Foe
Why was the Sabbath changed?
Sunday is NOT the Sabbath!
Our Understanding of the Sabbath