Galatians 4:28-30

New Revised Standard Version, Anglicised

²⁸ Now you,^[a] my friends,^[b] are children of the promise, like Isaac. ²⁹ But just as at that time the child who was born according to the flesh persecuted the child who was born according to the Spirit, so it is now also. ³⁰ But what does the scripture say? ‘Drive out the slave and her child; for the child of the slave will not share the inheritance with the child of the free woman.’