Reparation Offering for Unrecognized Liability
The same rare offering word later appears in Isaiah 53. The strongest Christian reading is therefore not “every legal detail secretly depicts Jesus,” but the Bible's own word trail from reparation offering → Servant → Jesus.
Where this fits in the story: Continues the asham legislation but addresses difficult liability when the person has done what is prohibited without knowing/recognizing it at the time.
Where Scripture takes it next: Leviticus 7:1–10 supplies the priestly handling of the same offering type.