Authentic: A Tale of Two Sons
Joe Floris
Part of Sermon Notes
March 3, 2024


Galatians 4:21–5:1 (NIV) Tell me, you who want to be under the law, are you not aware of what the law says? For it is written that Abraham had two sons, one by the slave woman and the other by the free woman. His son by the slave woman was born according to the flesh, but his son by the free woman was born as the result of a divine promise. These things are being taken figuratively: The women represent two covenants. One covenant is from Mount Sinai and bears children who are to be slaves: This is Hagar. Now Hagar stands for Mount Sinai in Arabia and corresponds to the present city of Jerusalem, because she is in slavery with her children. But the Jerusalem that is above is free, and she is our mother. For it is written: “Be glad, barren woman, you who never bore a child; shout for joy and cry aloud, you who were never in labor; because more are the children of the desolate woman than of her who has a husband.” Now you, brothers and sisters, like Isaac, are children of promise. At that time the son born according to the flesh persecuted the son born by the power of the Spirit. It is the same now. But what does Scripture say? “Get rid of the slave woman and her son, for the slave woman’s son will never share in the inheritance with the free woman’s son.” Therefore, brothers and sisters, we are not children of the slave woman, but of the free woman. It is for freedom that Christ has set us free. Stand firm, then, and do not let yourselves be burdened again by a yoke of slavery.

Why do Christians follow some rules in the Bible and not others?

Laws: Guide for the nation of Israel (Deut. 22:1-4, Lev. 25)
Laws: Guide for “clean” and “unclean” things, and practices (Lev. 11, 12:2)
Laws: Guide for what was and (Ex. 20:1-17)

The moral law is not God’s plan for life but it is His plan for life.

Paul’s Authentic Gospel vs. His Opponents
Paul’s Opponents’ Gospel: Believe >

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Paul’s Authentic Gospel: Believe > >

Paul’s Point in Using Ishmael and Isaac’s Story
Ishmael’s Story:
God’s

– Human – Human
Isaac’s Story: God’s Promise – God’s – God’s

Four Approaches to the Gospel and the Law
(From Timothy Keller’s Galatians for You)
Law

/ Law : God’s Promise – Plan – Power
Law / Law : God’s Promise – Plan – Power
Not Law / Law : God’s Promise – Plan – Power
Not Law / Law : God’s Promise – Plan – Power

Freedom is not knowing I can do what I

. Freedom is knowing God will do what He . (Galatians 5:1)