Galatians 3:7 Meaning

5He therefore that ministereth to you the Spirit, and worketh miracles among you, doeth he it by the works of the law, or by the hearing of faith?

6Even as Abraham believed God, and it was accounted to him for righteousness.

7Know ye therefore that they which are of faith, the same are the children of Abraham.

8And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed.

9So then they which be of faith are blessed with faithful Abraham.