Galatians 4:28-31

28And we, [believing] brothers and sisters, like Isaac, are children [not merely of physical descent, like Ishmael, but are children born] of promise [born miraculously].

29But as at that time the child [of ordinary birth] born according to the flesh persecuted the son who was born according to [the promise and working of] the Spirit, so it is now also.

30But what does the Scripture say? “Cast out the bondwoman [Hagar] and her son [Ishmael], For never shall the son of the bondwoman be heir and share the inheritance with the son of the free woman.”

31So then, believers, we [who are born again—reborn from above—spiritually transformed, renewed, and set apart for His purpose] are not children of a slave woman [the natural], but of the free woman [the supernatural].