These precepts are rather obscure. It is probable, that they refer to the heathenish practices of the idolatrous neighbours around Israel. And if so, they serve to teach, that everything which hath the remotest tendency to the unfruitful works of darkness, is to be cautiously abstained from. Ephesians 5:11-12.
Related Commentaries of Leviticus 19:26
Leviticus 19:26-29
26 Ye shall not eat any thing with the blood: neither shall ye use enchantment, nor observe times.
27 Ye shall not round the corners of your heads, neither shalt thou mar the corners of thy beard.
28 Ye shall not make any cuttings in your flesh for the dead, nor print any marks upon you: I am the LORD.
29 Do not prostitutec thy daughter, to cause her to be a whore; lest the land fall to whoredom, and the land become full of wickedness.