Genesis 28:15 And, behold, I am with thee, and will keep thee in all places whither thou goest, and will bring thee again into this land; for I will not leave thee, until I have done that which I have spoken to thee of.
[Patriarchs & Prophets pp 187] “And Jacob rose up early in the morning, and took the stone that he had put for his pillows, and set it up for a pillar, and poured oil upon the top of it.” In accordance with the custom of commemorating important events, Jacob set up a memorial of God's mercy, that whenever he should pass that way he might tarry at this sacred spot to worship the Lord. And he called the place Bethel, or the “house of God.”
With deep gratitude he repeated the promise that God's presence would be with him; and then he made the solemn vow, “If God will be with me, and will keep me in this way that I go, and will give me bread to eat, and raiment to put on, so that I come again to my father's house in peace; then shall the Lord be my God: and this stone, which I have set for a pillar, shall be God's house: and of all that Thou shalt give me I will surely give the tenth unto Thee.”
Jacob was not here seeking to make terms with God. The Lord had already promised him prosperity, and this vow was the outflow of a heart filled with gratitude for the assurance of God's love and mercy. Jacob felt that God had claims upon him which he must acknowledge, and that the special tokens of divine favor granted him demanded a return. So does every blessing bestowed upon us call for a response to the Author of all our mercies.
Genesis 28:20 And Jacob vowed a vow, saying, If God will be with me, and will keep me in this way that I go, and will give me bread to eat, and raiment to put on, 21 So that I come again to my father's house in peace; then shall the Lord be my God.
May The Lord add His blessing to the study of His word. God bless!