Genesis 6:9-22
The toledot of Noah opens with the first canonical tsaddiq, runs through the only OT verse where atonement-noun and atonement-verb co-occur, makes the first canonical covenant, and closes with a sentence that recurs nearly word-for-word when Moses finishes the tabernacle. The Hebrew lexicon discloses Noah's ark as the canonical first iteration of the covenant-sanctuary-atonement cycle the rest of the Old Testament builds out.
Isaiah 53:4–6
Three ancient witnesses — the Masoretic Text, the Septuagint, and the Dead Sea Scrolls — preserve Isaiah's portrait of vicarious suffering. Where they agree and diverge reveals how ancient readers understood the cost of peace.