Genesis 28:15

"Behold, I am with thee, and will keep thee in all places whither thou goest; for I will not leave thee, until I have done that which I have spoken to thee of." - Genesis 28:15

Here is a promise to Jacob, and not to Jacob only, personally considered, but to Jacob's seed. For the apostle Paul was commissioned by the Holy Ghost to tell the church of Jesus, that we, as Isaac was, are the children of promise. Hence this, like all other promises in Christ Jesus, is yea and amen. Pause, then, my soul, and ask thyself what hath the Lord spoken to thee of? Hath he met with thee in Bethel, as he found Jacob? And hath he there spoken unto thee? How wilt thou know? Very plainly. Jesus hath met with thee, hath indeed spoken unto thee, if so be thou hast seen thine own unworthiness and sinfulness by nature and by practice; and if thou hast seen the King in his beauty, even Jesus in his own glory, suitableness, and all-sufficiency, as a Saviour; and inclined thine heart by his grace to believe in him, to depend upon him, and to live to him and his glory. What sayest thou, my soul, to these things? Is this promise made to Jacob and his seed thine? If so, live upon Jesus, and plead the fulfilment of it daily, hourly. Say to him, my soul, Lord, what hast thou spoken to me of, but mercy, pardon, peace, and grace, with all spiritual blessings in Christ Jesus? And what have I to depend upon, or what indeed can I need more, but thy promise and the great Promiser? Yes, Lord Jesus, I do depend, I do believe. Surely thou wilt never leave whom thou hast once loved; and therefore thou wilt not leave me, until thou hast done that which thou hast spoken of in grace here, and wilt complete in glory hereafter.