The number three in the Bible represents completeness. That's why Jesus rose on the third day after the Crucifixion -- his transformation was complete. It's why Elijah stretched himself on the dead child three times, why Jonah was in the belly of the fish for three days, why the Lord called Samuel three times, and many more. It's also reflected in the fact that there are three levels of heaven, three levels of hell, three levels to human life and, ultimately, three aspects of the Lord Himself: Father, Son and Holy Spirit.

10325. The books of the Word are all those which have the internal sense; books which do not have it are not the Word. The books of the Word in the Old Testament are: The five Books of Moses; the Book of Joshua; the Book of Judges; the two Books of Samuel; the two Books of Kings; the Psalms of David; and the Prophets, Isaiah, Jeremiah, Lamentations, Ezekiel, Daniel, Hosea, Joel, Amos, Obadiah, Jonah, Micah, Nahum, Habakkuk, Zephaniah, Haggai, Zechariah, Malachi. And in the New Testament they are: The four Gospels of Matthew, Mark, Luke, John; and the Book of Revelation.