Exodus Exodus 12:21-51
The night the Passover became event faces two directions at once: behind, to YHWH's own vigil to bring Israel out of Egypt; ahead, to the watch Israel keeps for their generations — a feast still waiting, by its own grammar, for its last night.
Exodus Exodus 12:1-20
The blood goes on the outside of the door, where the family inside cannot see it — because it is a sign for God to read; and the verb the feast is named for does not mean to skip but to shelter, YHWH himself hovering over the marked house while the destroyer passes through Egypt.
Exodus Exodus 11:1-10
The whole chapter narrows to a single silence: on the night Egypt will scream, not a dog will so much as growl at Israel — the audible proof that YHWH distinguishes between the two peoples, the distinction climaxing at last on the firstborn.
Exodus Exodus 4:1-31
Moses fears the people will not believe him; the chapter ends with the words 'the people believed.' Between those poles God names Israel his firstborn son and arms the exodus with a threat that will fall on every Egyptian household.
Genesis Genesis 48:1-22
At his deathbed Jacob blesses Joseph's sons with three names for one God — the God of his fathers, the God who shepherded him, and the Angel who redeemed him — bound under a single verb. The grammar makes the Angel God, and gives the canon its first Redeemer and its first divine Shepherd in one breath.
Genesis Gen 48:13–20; Psa 89:27; Col 1:15–18
The Torah instituted firstborn privilege: double portion, consecration to YHWH, the priestly role. The narrative then overturned that privilege six times — Cain to Abel, Ishmael to Isaac, Esau to Jacob, Manasseh to Ephraim, Reuben to Joseph-and-Judah, Jesse's older sons to David. Psalm 89 reframed the word itself: 'I will make him my firstborn.' The New Testament finished the sentence.