“And I will give unto thee, and to thy seed after thee, the land wherein thou art a stranger, all the land of Canaan, for an everlasting possession; and I will be their God.”
King James Version (KJV)
17:8 And I will give thee Canaan for an everlasting possession - God had before promised this land to Abraham and his seed, #Ge 15:18|. But here, it is promised for an everlasting possession, as a type of heaven, that everlasting rest which remains for the people of God. This is that better country to which Abraham had an eye, and the grant of which was that which answered the vast extent of that promise, that God would be to them a God; so that if God had not designed this, he would have been ashamed to be called their God, #Heb 11:16|. As the land of Canaan was secured to the seed of Abraham, according to the flesh; so heaven is secured to all his spiritual seed for a possession truly everlasting. The offer of this eternal life is made in the word, and confirmed by the sacraments, to all that are under the external administration of the covenant, and the earnest of it is given to all believers.