Maimonides (1138-1204) listed thirteen fundamental principles of Judaism in his Introduction to the chapter Chelek.  Many scholars feel sure that he wrote them for uneducated Jews, who needed to think that all of these principles are true, as “necessary truths,” what the Greek philosopher Philo called “noble lies,” even though they are not all true. Others see that the principles could reflect Maimonides accurate view if they are not understood literally.

If the second understanding is correct, they can be understood as follows. The first is the obligation to know. God, who created this world.  Many Jews agreed, including Ibn Ezra, who also articulated this basic concept: God “is all and all is from him.” We know God by learning what God created or formed.

Maimonides’ second principle requires the Jew to know that God is one.  Ibn Ezra also stresses this idea.  “God is One, and there is no second to Him.  He also has no son or brother.”

His third principle requires the Jew to understand that God is incorporeal.  Ibn Ezra states this as well.  “God has neither body nor form.”  Ibn Ezra reproves those who imagine God anthropomorphically in Genesis 1:26 and Deuteronomy 32:1, and anthropopathically in Genesis 6:6. Like Maimonides, he explains that descriptions of God in human form or with human emotions are mere metaphors.  The Torah avoids philosophical abstractions and speaks in the language of ordinary people.

Fourthly, Maimonides emphasizes that God is first and last.  Ibn Ezra remarks: “time did not precede Him.”

Fifthly, Jews must pray only to God.  Ibn Ezra writes: “all hearts are insufficiently able to tell his greatness, and tongues have difficulty to speak His praise.”

Six: The two agree that prophecy is obtained naturally by developing the intellect.

Seven: They agree that Moses is the best of the prophets.  Maimonides lists four ways in which Moses’s prophecy was superior to that of other prophets: (1) there was no intermediary, (2) he was the only prophet who could receive prophecy while awake, (3) he was undaunted by the experience, and (4) he could receive visions at will.

Maimonides’ eighth principle is that the Torah, both written and oral, is from heaven.  This concept is ambiguous.  Although Maimonides does not identify any parts of the Torah as not originating from Moses, it is possible that he did not mean that Moses wrote every statement in the Torah.  It is conceivable that Maimonides merely wanted to emphasize that the entire Torah has a divine origin.  Parts, such as the last twelve verses of Deuteronomy, may have been written by Joshua, but by means of prophecy.  Had Maimonides mentioned the idea of “Torah from Sinai,” which is a different concept from “Torah from heaven,” he would have clearly meant that the entire Torah now in our hands was given to and written by Moses.  Ibn Ezra also felt that the Torah was at least partially prophetically transmitted.

Maimonides’ ninth principle is that nothing may be added to or diminished from the Torah.  Ibn Ezra agreed.

Maimonides’ tenth dogma is that God knows all.  Ibn Ezra comments: “He knows the secret things, even like those that are revealed, those that are hidden like those that are seen.  He searches the hearts.…” Like Maimonides, Ibn Ezra denies divine knowledge of human particulars.  In his commentary to Genesis 18:21, he records: “for it is the truth that the All (namely, God) knows every particular (only) in a general manner, but not in a particular manner.”

As the eleventh principal, Maimonides speaks of divine reward and punishment.  So, too, does Ibn Ezra.  “His rule is justice and law.”

Both emphasize the importance of belief in the Messiah (principle 12), although they may differ in detail.  In Mishneh Torah (Hilchot Melachim 11:1), Ibn Ezra (in his commentary on Numbers 24:17) cites Daniel and Deuteronomy 30:4-5 and warns that those who dismiss this biblical concept lack understanding.

Ibn Ezra’s rationalistic understanding of the world to come (principle 13) reflects the later Maimonidean.  Life after death is reserved for those people who develop their intellect to know God.  Their knowledge joins the divine and lives forever with the divine. By “joins the divine,” he means exists after the body dies.

Thus, in Genesis 5:22 and 24, which state that “Enoch walked with God,” Ibn Ezra explains that this indicates he developed his intellect.  And the words, “he was not, for God took him,” are a way of saying that his body ceased functioning, but his intellect continued to exist.