Galatians 4:21–31 (ESV)
Example of Hagar and Sarah
21 Tell me, you who desire to be under the law, do you not listen to the law? 22 For it is written that Abraham had two sons, one by a slave woman and one by a free woman. 23 But
the son of the slave was born according to the flesh, while the son of the free woman was born through promise. 24 Now this may be interpreted allegorically: these women are two covenants. One is from Mount Sinai, bearing children
for slavery; she is Hagar. 25 Now Hagar is Mount Sinai in Arabia; she corresponds to the present Jerusalem, for she is in slavery with her children. 26 But the Jerusalem above is free, and she
is our mother. 27 For it is written,
“Rejoice, O barren one who does not bear;
break forth and cry aloud, you who are not in labor!
For the children of the desolate one will be more
than those of the one who has a husband.”
you, brothers, like Isaac, are children of promise. 29 But just as at that time he who was born according to the flesh persecuted him who was born according to the Spirit, so also it is now. 30 But
what does the Scripture say? “Cast out the slave woman and her son, for the son of the slave woman shall not inherit with the son of the free woman.” 31 So, brothers, we are not children of the slave but of the
Paul reverses the Judaizers’ definition of Abraham’s true children. The uncircumcised Gentile Christians are Sarah’s children (and thus free), not
Hagar’s (slaves). Legalism (v 21) imagines that a saving relationship with God depends on certain rules and regulations. The Christian religion sets people free, giving birth to heirs of eternal life in Christ.
I pray: We rejoice, O Lord, that through faith we are already members of Your heavenly kingdom. Lead us to share our joy by sharing the promise in Jesus. Amen.
Edward A. Engelbrecht, The Lutheran Study Bible
(St. Louis, MO: Concordia Publishing House, 2009), 2010.