How to read this page

An Intertextuality Pair — one connection between two passages, shown as linked verse cards: the Later text and the Earlier text it quotes, alludes to or echoes. The Significance essay explains why the link matters and where it points in Christ.

Reference Type— how explicit the link is: Quotation, Allusion, or Echo
Connection Method(s)— how it carries meaning: e.g. Typology, Promise-Fulfillment, Analogy, Longitudinal Theme
Found via— where the connection was identified, e.g. the Treasury of Scripture Knowledge or an Anchor-Text Network

Graph View — tap the constellation icon in the top bar to see this page's connections as a web of light: gold points are passages, and the coloured threads are the connection types. Click any type in the graph's own legend to filter it in or out, and use the expand control for the full-screen night sky.

New to a term? The Glossary explains every abbreviation and term on the site in plain words.

Intertextuality Pair

Romans 9:9 → Genesis 18:10

Quotation

Later text

Romans 9:9BSB

For this is what the promise stated: “At the appointed time I will return, and Sarah will have a son.”

Earlier text

Genesis 18:10BSB

Then the LORD said, "I will surely return to you at this time next year, and your wife Sarah will have a son!" Now Sarah was behind him, listening at the entrance to the tent.

Walk the Square · a single-voice walk of this pair around the Clowney square14:03

Significance

Paul quotes Genesis 18:10 (cf. 18:14) in Romans 9:9 to distinguish the children of promise from the children of the flesh, arguing that physical descent from Abraham does not constitute membership in the true Israel. The divine promise (ho logos tēs epangelias) declared to Abraham that Sarah would bear a son "at this time" (kata ton kairon touton) establishes the pattern of sovereign election: Isaac's birth was not by natural means but by divine intervention. Paul's point is that God's word has not failed (9:6) because the true "seed" was always determined by divine promise rather than physical lineage. This text serves as the first of two election-illustrations (Isaac in vv. 7-9, Jacob in vv. 10-13), both demonstrating that God's saving purposes operate through sovereign choice. The quotation follows the LXX of Genesis 18:10 with minor adaptations.

Found via: Treasury of Scripture Knowledge
Reference Type: Direct Quotation
Connection Method(s): Promise-Fulfillment + Typology (Providential Type, Forward-Looking)

Linked Mentions 2

Trajectory Tables 2