Thanks for asking a question on www.thisisyourbible.com.
No it isn't. It is one of them. In Genesis, the promise to Eve in 3:15 and the promises to Abraham beginning in chapter 12 are key and provide the basis of all subsequent revelation including the New Testament. The Exodus' purpose was to prepare Israel as God's people through whom He would reveal Himself to the world. The key events in that process were rescuing them from Egypt, the revelation of His law, the establishment of the Tabernacle as a formal meeting point of worship and sacrifice and the provision of their territory, the Kingdom of God in Canaan.
Here are links to information you will find helpful:
Your Share in God's Promises: www.thisisyourbible.com/library/show/181
Promises of God: www.thisisyourbible.com/library/show/27
If you want to come to grips with what the Bible really teaches, why not take the free Bible study course on www.thisisyourbible.com? You may take this course either online or by regular mail.
This course will give you a background in the major themes of the Bible from Genesis to Revelation. As with everything we offer, there is no cost to you other than your time and effort. You will also have a personal tutor to whom you may pose questions either from the course itself or those questions which come to you as you read the Bible.
I hope you have found this helpful.
May God bless you,