Galatians 4:28
“Now we, brethren, as Isaac was, are the children of promise.”
But Jerusalem which is above is free, which is the mother of us all.
For it is written, Rejoice, thou barren that bearest not; break forth and cry, thou that travailest not: for the desolate hath many more children than she which hath an husband.
Now we, brethren, as Isaac was, are the children of promise.
But as then he that was born after the flesh persecuted him that was born after the Spirit, even so it is now.
Nevertheless what saith the scripture? Cast out the bondwoman and her son: for the son of the bondwoman shall not be heir with the son of the freewoman.
Why This Verse Was Tagged
This verse contains specific terms directly associated with this theme.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And the Lord visited Sarah as he had said, and the Lord did unto Sarah as he had spoken.”
“But he who was of the bondwoman was born after the flesh; but he of the freewoman was by promise.”
“So then they which be of faith are blessed with faithful Abraham.”
“That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.”
“And Abraham gave all that he had unto Isaac.”