Galatians 3:6-8
“Consider Abraham:  ‘He believed God, and it was credited to him as righteousness.’  Understand then, that those who believe are children of Abraham.  The Scriptures foresaw that God would justify the Gentiles by faith, and announced the gospel in advance to Abraham: ‘All nations will be blessed through you.’  So those who have faith are blessed along with Abraham, the man of faith.”