This refers to the breast of the animals that the Israelites were to bring as offerings to Yahweh and give to the priests, who would wave them before Yahweh.
This refers to the upper part of the leg above the knee of the animals that the Israelites were to bring as offerings to Yahweh and give to the priests, who would eat them with their families.
This can be translated in active form. Alternate translation: "for Yahweh has assigned them to you as your portion" (See: [[rc://en/ta/man/jit/figs-activepassive]])