Judaism by the Numbers

Seven days of creation

Separation of light from darkness.
Separation of water above and waters below.
Separation of land from water.
Sun, moon, and stars.
Sea creatures and birds.
Land creatures and man.
God rested. {1}

Ten Commandments

Worship no other gods.
Do not worship idols.
Do not misuse the name of the Lord.
Keep the Sabbath holy.
Honor your father and mother.
Do not murder.
Do not commit adultery.
Do not steal.
Do not give false testimony
Do not covet. {2}

Twelve tribes of Israel

Reuben
Levi/Simeon
Judah
Issachar
Zebulun
Benjamin
Dan
Naphtali
Gad
Asher
Ephraim
Manassah {3}

13 Articles of Faith

God exists
God is one and unique
God is incorporeal
God is eternal
Prayer is to God only.
The prophets spoke truth.
Moses was the greatest of the prophets.
The Written and Oral Torah were given to Moses.
There will be no other Torah.
God knows the thoughts and deeds of men.
God will reward the good and punish the wicked.
The Messiah will come.
The dead will be resurrected. {4}

References

1. Genesis 1:3-2:2.
2. Exodus 20:1-17; Deuteronomy 5:6-21.
3. Genesis 49.
4. According to Maimonides.