Galatians 4:29-31

Revised Standard Version

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. ³⁰ 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.” ³¹ So, brethren, we are not children of the slave but of the free woman.