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• Gal 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.
• Gal 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.
• Gen 12:1 — Now the LORD had said unto Abram, Get thee out of thy country, and from thy kindred, and from thy father’s house, unto a land that I will shew thee:
• Gen 12:2 — And I will make of thee a great nation, and I will bless thee, and make thy name great; and thou shalt be a blessing:
• Gen 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.
• Gen 15:18 — In the same day the LORD made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates:
• Gen 15:5 — And he brought him forth abroad, and said, Look now toward heaven, and tell the stars, if thou be able to number them: and he said unto him, So shall thy seed be.
• Gen 15:6 — And he believed in the LORD; and he counted it to him for righteousness.
• Gen 17:1 — And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him, I am the Almighty God; walk before me, and be thou perfect.
• Gen 17:19 — And God said, Sarah thy wife shall bear thee a son indeed; and thou shalt call his name Isaac: and I will establish my covenant with him for an everlasting covenant, and with his seed after him.
• Gen 17:4 — As for me, behold, my covenant is with thee, and thou shalt be a father of many nations.
• Gen 17:7 — And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee.
• Gen 22:17 — That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of his enemies;
• Heb 6:13 — For when God made promise to Abraham, because he could swear by no greater, he sware by himself,
• Rom 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.
• Rom 4:16 — Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,
• Rom 4:3 — For what saith the scripture? Abraham believed God, and it was counted unto him for righteousness.

Articles of the historic confessions that address this doctrine.

• Reformed Westminster Confession of Faith 7.2 — Of God's Covenant with Man
• Reformed Westminster Confession of Faith 7.5 — Of God's Covenant with Man
• Reformed Baptist 1689 London Baptist Confession 7.3 — Of God's Covenant
• Reformed Westminster Larger Catechism Q31 — With whom was the covenant of grace made?
• Reformed Baptist 1689 London Baptist Confession 7.2 — Of God's Covenant
• Roman Catholic Council of Trent (Decrees) On Justification · Chapter II — On the dispensation and mystery of Christ’s advent

The earliest Fathers who commented on the Scriptures above.