4 ²¹ Tell me, you who desire to be under law, do you not hear the law? 4 ²² For it is written that Abraham had two sons, one by a slave and one by a free woman. 4 ²³ But the son of the slave was born according to the flesh, the son of the free woman through promise. 4 ²⁴ Now this is an allegory: these women are two covenants. One is from Mount Sinai, bearing children for slavery; she is Hagar. 4 ²⁵ Now Hagar is Mount Sinai in Arabia; she corresponds to the present Jerusalem, for she is in slavery with her children. 4 ²⁶ But the Jerusalem above is free, and she is our mother. 4 ^{27 [ Is.54.1. ]} For it is written,

4 ²⁸ Now we, brethren, like Isaac, are children of promise. 4 ²⁹ But as at that time he who was born according to the flesh persecuted him who was born according to the Spirit, so it is now. 4 ^{30 [ Gn.21.10. ]} But what does the scripture say? "Cast out the slave and her son; for the son of the slave shall not inherit with the son of the free woman." 4 ³¹ So, brethren, we are not children of the slave but of the free woman. 5 ¹ For freedom Christ has set us free; stand fast therefore, and do not submit again to a yoke of slavery.