Sarah bore Isaac only because Divine intervention gave her an egg...she was barren so descendants were humanly impossible
It’s by faith and obedience...just as Israel left Egypt as a mixed multitude...led by faith and obedience...one Law for both native and foreigner
Mary bore only because Divine intervention gave her Seed...
I don't think you can say Sarah didn't have any eggs.
God promised ABRAHAM that a blood descendant would come the Savior.
Genesis 22:18 and through
your offspring all nations on earth will be blessed, because you have obeyed me."
Genesis 26:4-5I will make
your descendants as numerous as the stars in the sky and will give them all these lands, and through your offspring all nations on earth will be blessed, because Abraham obeyed me and kept my requirements, my commands, my decrees and my laws."
Genesis 22:17 I will surely bless you and make
your descendants as numerous as the stars in the sky and as the sand on the seashore.
Your descendants will take possession of the cities of their enemies,
Genesis 15:5 He took him outside and said,
"Look up at the sky and count the stars--if indeed you can count them." Then he said to him,
"So shall your offspring be."
Deuteronomy 7:8But it was because the LORD loved you and kept the oath he swore to your ancestorsthat he brought you out with a mighty hand and redeemed you from the land of slavery, from the power of Pharaoh king of Egypt.
Deuteronomy 4:37 Because he loved your ancestors and chose their descendants after them, he brought you out of Egypt by his Presence and his great strength,
Deuteronomy 9:5 It is not because of your righteousness or your integrity that you are going in to take possession of their land; but on account of the wickedness of these nations, the LORD your God will drive them out before you,
to accomplish what he swore to your fathers, to Abraham, Isaac and Jacob.
Micah 7:20You will be faithful to Jacob, and show love to Abraham, as you pledged on oath to our ancestors in days long ago.
Romans 1:3 Concerning his Son
Jesus Christ our Lord, which was made of the seed of David according to the flesh;
Romans 9:
3 For I could wish that myself were accursed from Christ for
my brethren, my kinsmen according to the flesh:
4 Who are Israelites; to whom pertaineth the adoption, and the glory, and the covenants, and the giving of the law, and the service of God, and the promises; 5 Whose are the fathers, and of whom as concerning the flesh Christ came, who is over all, God blessed for ever. Amen.
The ANCESTORS of the Israelites are ABRAHAM, ISAAC, and JACOB, and to David, and all the way to Mary and Joseph.
An ANCESTOR, an OFFSPRING, a DESCENDANT---are BLOOD RELATIVES.
The Jews are those BLOOD related to Abraham, Isaac, and Jacob.
Since Jesus came, it no longer matters if one is blood related to Abraham---it only matters now if we come into the blood of Jesus.