Actually there are several found in the old testament but time will not allow me to cover all of them. But please know that some of them have been fulfilled, such a the promise of the out pouring of (the Holy spirit) Joel 2:28-29; and the promise of the coming of the Messiah Isaiah 7:14; That's just to name a few but my dear friend (For all the promises of God in him are yea, and in him A-men, unto the glory of God by us. (2Corinthians 1:20) Kjv. Please know that God doesn't lie and all of his promises shall come surly to pass. Even so come Lord Jesus.
The mother of all promises is, to burn u for an eternity in an infamy as hell, should u fail --- which is most likely because he's too obscure & phony -- to do exactly as he is said to have supposedly said!! And, That there is a narrow road that leads from earth to the Christian's heartless heaven -- only for those who BELIEVE.
There are many promises from God, too many to list. When claiming a promise from Scripture, we should keep the following principles in mind: 1) Promises are often conditional. Look for the word "if" in the context. 2) God gives us promises to help us better submit to His will and trust Him. A promise does not make God bend to our will. 3) Do not assume to know precisely when, where, or how the promise will be fulfilled in your life .http://www.gotquestions.org/God-promises.html