Galatians 3:3-8

Are you so foolish and senseless? Having begun [your new life by faith] with the Spirit, are you now being perfected and reaching spiritual maturity by the flesh [that is, by your own works and efforts to keep the Law]? Have you suffered so many things and experienced so much all for nothing—if indeed it was all for nothing? So then, does He who supplies you with His [marvelous Holy] Spirit and works miracles among you, do it as a result of the works of the Law [which you perform], or because you [believe confidently in the message which you] heard with faith? Just as Abraham BELIEVED GOD, AND IT WAS CREDITED TO HIM AS RIGHTEOUSNESS, [as conformity to God’s will and purpose—so it is with you also]. [Gen 15:6] So understand that it is the people who live by faith [with confidence in the power and goodness of God] who are [the true] sons of Abraham. The Scripture, foreseeing that God would justify the Gentiles by faith, proclaimed the good news [of the Savior] to Abraham in advance [with this promise], saying, “IN YOU SHALL ALL THE NATIONS BE BLESSED.” [Gen 12:3]