" They are not all Israel who are of Israel” (Romans 9:6). “Therefore know that only those who are of faith are sons of Abraham” (Galatians 3:7). “Those who are the children of the flesh, these are not the children of God; but the children of the promise are counted as the seed” (Romans 9:8). “He is not a Jew who is one outwardly, nor is circumcision that which is outward in the flesh; but he is a Jew who is one inwardly; and circumcision is that of the heart, in the Spirit, not in the letter; whose praise is not from men but from God” (Romans 2:28–29). “This Hagar is Mount Sinai in Arabia, and corresponds to Jerusalem which now is, and is in bondage with her children—but the Jerusalem above is free, which is the mother of us all” (Galatians "

― David Wilkerson , It Is Finished: Finding Lasting Victory Over Sin