Hi HankD, you raised a very good point with Galatians 4:28-29.
Here is how the NASB95 renders the passage:
Note that the second "who was born" was added by the translators and is not part of the inspired text. Thus the verse can be understood to say those who were born according to the flesh (i.e. all fallen folks) persecuted Isaac who was "according to the Spirit." Isaac was a believer in God and a child of the promise, but had not yet been born anew under the provision of the New Covenant, he too had to wait in Abraham's bosom.
That changes nothing:
26 and
the Jerusalem above is the free-woman, which is
mother of us all,
27 for it hath been written, `Rejoice, O barren, who art not bearing; break forth and cry, thou who art not travailing, because many are the children of the desolate -- more than of her having the husband.`
28 And
we, brethren,
as Isaac, are
children of promise,
29 but as then he who was born according to the flesh did persecute him
according to the spirit, so also now; Gal 4 YLT
3 Jesus answered and said to him, `Verily, verily, I say to thee, If any one may not be
born from above, he is not able to see the reign of God;`
7 `Thou mayest not wonder that I said to thee, It behoveth you to be
born from above;
8 the Spirit where he willeth doth blow, and his voice thou dost hear, but thou hast not known whence he cometh, and whither he goeth; thus is every one who hath been
born of the Spirit.` Jn 3 YLT
Every child of promise that ever was, OT or NT, is born of the Spirit from the Jerusalem above, circumcised in heart, Jews inwardly, Israelites indeed.