Shared ground
These verses explain how parts of a peace-offering meal are formally set apart and then assigned. The offerer is not passive: “his own hands” bring the fat and the breast to the priest (vv. 29–30). The priest burns the fat on the altar, while specific edible portions become priestly food (vv. 31–33).
The text also ties priestly provision to God’s action: Yahweh says he has “taken” these parts from Israel and “given” them to Aaron and his sons (v. 34). This frames the priestly share as a stable, authorized allocation rather than an optional tip.
Where interpretation differs (only where needed)
What “wave” and “heave/lift” looked like. Some read “wave” and “lift” as distinct, specific motions performed in a set way. Others treat the terms as describing a general act of presenting and dedicating the portion to Yahweh before it is eaten by priests, without being able to reconstruct the exact motion from this text alone.
What “forever” means here. Some take “forever” (vv. 34, 36) as unending in the strongest sense. Others understand it as “a lasting rule for as long as this priesthood and sacrificial system is in force,” meaning it is permanent within the life of that covenant arrangement.
Why the disagreement exists
The passage names the actions (“waved,” “lifted”) but does not explain the mechanics, so readers infer details from later practice, other texts, or general ancient ritual patterns. Likewise, “forever” can be used in Scripture for an enduring statute within a defined covenant setting; deciding which nuance fits best requires comparison beyond this paragraph.
What this passage clearly contributes
- It explicitly assigns the breast to Aaron and his sons after it is presented (vv. 30–31).
- It explicitly assigns the right thigh to the priestly line, and more narrowly identifies the serving priest (the one who offers the blood and fat) as the one who receives that thigh portion (vv. 32–33).
- It portrays priestly portions as God-given, not merely community-funded (v. 34).
- It links this allocation to the priests’ installation into office (“anointing-portion”) and to continuity “throughout their generations” (vv. 35–36).
(For the broader peace-offering context, compare Leviticus 7:11–7:21.