His own hands shall bring the offerings of the LORD made by fire, the fat with the breast, it shall he bring, that the breast may be waved for a wave offering before the LORD.
The fat with the breast - (cf. Exodus 29:26-27.) [Septuagint, to stear to epi tou steethuniou kai ton lobon tou heepatos, the fat which was upon the little breast and the lobe of the liver.] (The latter part of the sentence is an interpolation of the Septuagint, borrowed from Leviticus 3:4.) [Lexicographers and commentators differ respecting the proper meaning of hechaazeh (H2373), rendered "breast."] The definition given by Gesenius, with whom Winer agrees, is, 'that part which is seen-the front.' Without mentioning that of various others, Keil and Delitzsch ('On the Pentateuch,' Clark's Translation, vol. 2:, p. 328) consider it 'the brisket,' which consists for the most part of cartilaginous fat in the case of sheep, goats, and oxen, and is one of the most savoury parts; so that at the family festivities of the ancients, according to Athanasius ('Deipnos,' 2:70; 9:10), 'the breasts of lambs were dainty bits.'
That the breast may be waved for a wave offering before the Lord х tªnuwpaah (H8573), from nuwp (H5130), to lift up to wave the hand, was the name given to a sacrifice] - commonly part, and the best part, of a larger offering, which, before being placed upon the altar, was waved horizontally to and fro, to the right and left (Exodus 35:22). The ceremony in the peace offering consisted in the priest putting the breast piece into the hands of the offerer, and his own under them; and in this manner the swinging movement was made, after which they were laid upon the altar, when the fat was burnt, and the remainder became the portion of the priest (Exodus 29:27; Exodus 10:14-15; Numbers 6:20).