Genesis 28:15

And, behold, I am with thee, and will keep thee in all places whither thou goest, and will bring thee again in to this land; for I will not leave thee, until I have done that which I have spoken to thee of. In addition to the Messianic promise, which ever afterward was the greatest comfort of Jacob, just as it is the hope of all believers, the Lord gave him an assurance concerning his own personal welfare on his journeys. Jacob was able to rely upon the definite, infallible fulfillment of the Lord's promises, which are just as certain today as they were then and therefore require the same unquestioning acceptance.