Who is Galatians 4:27 speaking of, Sarah or Hagar?
The woman in view is Sarah, not Hagar. Verse 27 returns to the allegory of Ishmael and Isaac, and the one addressed is identified as the woman who had never had childbirth, which points to Sarah. This fits the contrast between earthly Jerusalem and the heavenly Jerusalem above.
Les teaches that Galatians 4:27 follows the contrast between earthly Jerusalem and the Jerusalem which is above. Grace Age believers are not tied to temple worship in earthly Jerusalem; they are tied to the heavenly Jerusalem, which is free and is the mother of us all. Then verse 27 comes back to Ishmael and Isaac, where the allegory rested. Les says his idea is that the verse is speaking of Sarah, because she was the one who had never had childbirth.
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.
More Questions
Did Ishmael or Isaac end up with more descendants, and how does that fit Galatians 4:27?
Ishmael's offspring ended up with far more progeny than Isaac's — the Arab world outnumbers the Jews today 50 to 1 — so she who had a husband (Sarah and Isaac) had far fewer in number than she who did not.