No you are trusting in being born of blood
Don't twist my words or attempt to make them express something I never said. It's dishonest and deceiving. There is something wrong with your heart and your character in doing this. Take my words as written.
You quote John 1:12-13 against me to make "Which were born, not of blood" as "proof" that God's Promise to Abraham that his biological seed (Issac, Jacob, and Jacob's twelve sons, and their families, etc.) is not inherited Promises when Scripture quotes that very exact thing.
2 And I will make my covenant between me and thee, and will multiply thee exceedingly. Genesis 17:2.
God Himself in the passage above not only gives Abraham an heir from his body as Abraham complained to God he wanted instead of having all Abraham's property - including Promises made by God - to be inherited at his death by a servant named "Eliezar" in Genesis 15:2.
2 And Abram said, Lord GOD, what wilt thou give me, seeing I go childless, and the steward of my house is this
Eliezer of Damascus?
3 And Abram said, Behold, to me thou hast given no seed: and, lo, one born in my house is mine heir.
4
And, behold, the word of the LORD came unto him, saying, This shall not be thine heir; but he that shall come forth out of thine own bowels shall be thine heir. Genesis 15:2–4.
God is faithful and God does not lie. God will keep all His promises made to Abraham that passes unfulfilled in Abraham's lifetime that God says will pass to his biological seed (Isaac) for that is one of the terms of God's promise to Abraham.
IT EXTENDS TO HIS BIOLOGICAL SEED (Isaac). And as long as God wishes to withhold fulfilling every promise He made to not only Abraham, but to Isaac and Jacob in succeeding passages in Genesis is God's prerogative. You are wrong to say that salvation is only "through faith" irrespective of covenant or birth of Abraham and his heir. Jesus Christ is an heir of Abraham in whom God has made to be the culmination of all His promises made to Abraham and to his seed.
You try to make salvation not part of the Promises God gave to Abraham recorded in Genesis 12, 15, and 17, which clearly state that everything about Redemptive History is tied to one man and to his biological seed.
12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
13 Which were born, not of blood, nor of the will of the flesh, nor of the will of man,
but of God. John 1:12–13.
Isaac was "
OF GOD" as the narration is Genesis states. So was Jacob and his twelve sons. This whole family was marked by God as "His people" and the Bible is a record of their history as told by men (and women) God used to tell it. Jesus Himself says "salvation is of the Jews" but you'll never read in its pages that "salvation is of the Gentiles." nor do you read that God made promises to non-Hebrews nor ever fought for them and their interests. God never gave His Law to Gentiles. Throughout the Bible Gentiles were the enemy of the Hebrew people also called Jews.
I know my (spiritual) birth was real and it was Biblical. It was "
OF GOD."
So, deal with it.