Text: Numbers 18:15-18
OT Text Referred to: Exodus 13:12-13
Subject: firstborn redemption administered
Source: Treasury of Scripture Knowledge
Reference Type: Allusion
Connection Method(s): Longitudinal Theme
Significance: Exodus 13:12-13 establishes the firstborn consecration law: every firstborn male must be set apart for God, with the option to redeem a donkey's firstborn by substituting a lamb. Numbers 18:15-18 assigns this system to the Aaronic priests and adds critical details: human firstborn must be redeemed at five shekels (v. 16), but firstborn of clean animals (ox, sheep, goat) may not be redeemed -- their blood is sprinkled on the altar and their fat burned as a רֵיחַ נִיחֹחַ (reyach nichoach, "pleasing aroma"). Numbers thus transforms the Exodus principle into a functioning priestly revenue system while maintaining the theological foundation: Israel's firstborn belong to God because He spared them at the Passover.
Consolidated 2026-06-09 per the later-text → earlier-text canonical-direction ruling (Full Corpus Audit, Phase 0). The content below is preserved verbatim from the deleted file "Exodus 13.12-13 to Numbers 18.15-18"; fold unique material into the Significance during the Phase 3 IP audit, then remove this section.
Text: Exodus 13:12-13
OT Text Referred to: Numbers 18:15-18
Subject: firstborn redemption and priestly administration
Source: Treasury of Scripture Knowledge
Reference Type: Allusion
Connection Method(s): Longitudinal Theme
Significance: Exodus 13:12-13 establishes the principle that every firstborn male belongs to the LORD and that firstborn sons and unclean animals must be redeemed (פָּדָה, padah), while Numbers 18:15-18 specifies the priestly procedures for this redemption: a payment of five shekels for firstborn sons, with the blood and fat of clean firstborn animals offered on the altar and the meat given to the priests. Numbers 18 thus provides the operational framework for implementing the Exodus 13 command, transforming a general principle of divine ownership into detailed cultic legislation. The firstborn of clean animals are treated like peace offerings—their blood sprinkled, their fat burned—connecting the firstborn consecration system to the broader sacrificial apparatus.