Galatians 4:28-30

Revised Standard Version Catholic Edition

²⁸ Now we,^[a] brethren, like Isaac, are children of promise. 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.”