Do not prostitute thy daughter. — This refers to the degrading worship of Astarte which prevailed in ancient times, and which at times also broke out among the Jews.
Related Commentaries of Leviticus 19:29
Leviticus 19:29
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.