Psalms 72:17 → Genesis 22:18

Psalm 72:17's prayer "In him may all nations be blessed" echoes Genesis 22:18, where after the Aqedah God swears: "through your offspring (זַרְעֲךָ, zar'akha) all nations of the earth will be blessed, because you have obeyed My voice." The Genesis 22 iteration of the blessing is uniquely significant because it follows Abraham's supreme act of obedience — the near-sacrifice of Isaac — and is grounded in a divine oath. Psalm 72 channels this oath-confirmed, seed-specific blessing promise through the Davidic king, implying that the royal descendant of Abraham is the "seed" through whom universal blessing will flow. The verbal overlap between Psalm 72:17 and Genesis 22:18 is the bless / nations promise-formula shared across the whole Abrahamic-blessing chain, not the word "seed" itself — a suggestive promise-chain link rather than a distinctive verse-to-verse citation. This is a probable allusion, so this pair carries supporting weight in the trajectories that cite it, not critical weight.