Galatians 3:8 And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed.
In thee shall all nations be blessed -
Acts 3:25 Ye are the children of the prophets, and of the covenant which God made with our fathers, saying unto Abraham, And in thy seed shall all the kindreds of the earth be blessed.
Romans 4:13 For the promise, that he should be the heir of the world, was not to Abraham, or to his seed, through the law, but through the righteousness of faith.
All nations should be made happy in him, or through him. The sense is, that the Messiah was to be descended from him, and the religion of the Messiah, producing peace and salvation, was to be extended to all the nations of the earth:
Genensis 12:3 And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed.
Galatians 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.
It is certain that Abraham’s faith terminated on the promised Seed, that is, Christ whose day he desired to see, and seeing it afar, was glad, John 8:56. “
(“Hereof it followeth,” says Luther on the place, “that the blessing and faith of Abraham is the same that ours is, that Abraham’s Christ is our Christ, that Christ died as well for the sins of Abraham as for us.”)
Jesus said … John 8:56 Your father Abraham rejoiced to see my day: and he saw it, and was glad.
God foretold his advent clearly to him, …
Genesis 12:3 And I will bless them that bless thee, and curse him that curseth thee: and in thee shall all families of the earth be blessed;
Genesis 18:18 Seeing that Abraham shall surely become a great and mighty nation, and all the nations of the earth shall be blessed in him?
Compare … Galatians 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, and to thy seed, which is Christ.”
John 8:39 They answered and said unto him, Abraham is our father. Jesus saith unto them, If ye were Abraham’s children, ye would do the works of Abraham.