C. F. Keil and Franz Delitzsch on Leviticus 18:22-23

Lev 18:22-23

Lastly, it was forbidden to “lie with mankind as with womankind,” i.e., to commit the crime of paederastia, that sin of Sodom (Gen 19:5), to which the whole of the heathen were more or less addicted (Rom 1:27), and from which even the Israelites did not keep themselves free (Jdg 19:22.); or to “lie with any beast.” “Into no beast shalt thou give thine emission of seed,...and a woman shall not place herself before a beast to lie down thereto.” רבע = רבץ “to lie,” is the term used particularly to denote a crime of this description (Lev 20:13 and Lev 20:15, Lev 20:16, cf. Exo 22:18). Lying with animals was connected in Egypt with the worship of the goat; at Mendes especially, where the women lay down before he-goats (Herodotus, 2, 46; Strabo, 17, p. 802). Aelian (nat. an. vii. 19) relates an account of the crime being also committed with a dog in Rome; and according to Sonnini, R. 11, p. 330, in modern Egypt men are said to lie even with female crocodiles.