NT Text: Luke 20:18
OT Source(s):
Source: Treasury of Scripture Knowledge; Bock, Luke (BECNT)
Reference Type: Allusion
Connection Method(s): Promise-Fulfillment + Contrast
Anchor Text: Isa 8:14 — A Stone of Stumbling
Significance: Concluding the parable of the wicked tenants, Jesus moves from the rejected-stone-become-cornerstone of Psalm 118:22 (Luke 20:17) to the stone's judgment function: "Everyone who falls on this stone will be broken to pieces, but he on whom it falls will be crushed" (Luke 20:18). The fall-and-be-broken grammar is the language of Isaiah 8:14-15, where the stone of stumbling and rock of offense produces exactly this outcome — "Many will stumble over these; they will fall and be broken; they will be ensnared and captured." Luke 20:18 thus fuses three OT stone-streams: Psalm 118:22 (the rejected stone), Daniel 2:34-35 (the crushing stone that grinds the kingdoms to powder), and Isaiah 8:14-15 (the stumbling-stone over which men fall and are broken). This IP documents the Isaiah 8 contribution — the dual-response judgment pole that the Psalm 118 and Daniel 2 streams do not by themselves supply. The contrast is the very point of the saying: the same stone is the believer's foundation and the unbeliever's ruin, and there is no neutral ground before it — one either takes refuge in the Stone or is broken upon it. Jesus identifies Himself as the Isaianic deposit Yahweh laid in Zion: He is the sanctuary-for-faith who is, to those who reject Him, the rock of offense. The telos is not a threat that stands alone but a summons — the Stone is dangerous precisely because it is divinely-laid and supremely worth taking refuge in; the warning of being broken exists to drive the hearer to fall in faith before the One who is the sure foundation rather than to be crushed by Him in judgment.
NT Use Pattern: Allusion / Assimilated — the judgment-grammar of Isaiah 8:14-15 woven into a saying that also activates Psalm 118:22 and Daniel 2:34-35. The fall and be broken verb-imagery tracks Isaiah 8:15 specifically; the crushing imagery tracks Daniel 2.
Anti-default check: Promise-Fulfillment is primary — Jesus is the Isaianic stone whose dual-response Yahweh announced. Contrast is the text's own structural marker (broken vs. crushed; the two outcomes of encountering the one Stone). Typology is carried at the cluster level in TT 154/TT 090; the load here is the announced dual-response fulfillment, so Promise-Fulfillment + Contrast is the more accurate classification.