Sarah conceived, and bore Abraham a son in his old age, at the set time of which God had spoken to him.
World English Bible
This verse is examined in more than one Scripture Analysis section. Each lens is shown on its own terms, in the section's own words; GEBible reaches no verdict of its own.
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Sarah conceived, and bore Abraham a son in his old age, at the set time of which God had spoken to him.
World English Bible
Questions where the Bible appears to say two different things, with the passages on each side set together.
Genesis 15:16 promises Abraham's descendants will return to Canaan "in the fourth generation." But when you actually trace the genealogy Genesis and Exodus give — Abraham → Isaac → Jacob → Levi → Kohath → Amram → Moses — you get six or seven generations depending on how you count, not four.
Critical scholarship: Leans toward a genuine contradiction.
Numbers
The proposed answers and sources for each reading are on the question page.
Romans 4:19 and Hebrews 11:12 both emphasize that Abraham's body was "as good as dead" and Sarah's womb was barren, so the birth of Isaac required miraculous divine intervention. Genesis 25:1-2 then reports that after Sarah's death, Abraham took Keturah as a wife and fathered six more sons — Zimran, Jokshan, Medan, Midian, Ishbak, Shuah — apparently without any supernatural assistance, despite being at least 137 years old (since Sarah died at 127 per Genesis 23:1, when Abraham was 137 per Genesis 17:17 / 25:7-10 reckoning).
Critical scholarship: Genuinely disputed among scholars.
Theology
The proposed answers and sources for each reading are on the question page.
Each section sets the viewpoints side by side; you weigh the evidence. Here, "critical scholarship" means academic study, not a value judgment. How this is built →
Within each section, grouped by shared field or question type — not a cross-section comparison.
This citation refers to this GEBible page — the verse and the analysis gathered here. To cite the underlying scholarship, cite those sources directly.
"Genesis 21:2 — Scripture Analysis" GEBible, https://gebible.app/analysis/verse/genesis/21/2?version=WEB (retrieved 27 August 2026).