‘For Abraham is the father of all who believe. That is what the Scriptures mean when God told him, “I have made you the father of many nations.”’ (Romans 4:16-17 NLT).

ABRAHAM’S SPIRITUAL FATHERHOOD
The apostle Paul quoted Genesis 17:5 to make the argument that God’s promise to Abraham was not only for his natural descendants, but also for the great multitudes from every nation that would believe. Paul retained the past tense language of Genesis, which quoted God saying, “I have made you” as if it had already come to pass, even though Abraham had yet to see his son, Isaac, born. God spoke of it as a thing already done, and in a sense, it was. For God had so preordained and determined, since before the foundation of the earth, that He would send His Son to redeem all those who believe (1 Peter 1:20). This Son, is Jesus, who is the “Promised Seed” of Abraham (Gal. 3:16). So, Abraham is the father of all, whether Jew or Gentile that believe in Jesus, the promised Seed of Abraham.