Wikipedia
Enticement to idolatry in Judaism is a capital offence under the Law of Moses. The Talmud distinguishes two types of enticers to idolatry - a mesit is a Jew who seduces an individual to idolatry, while a maddiah is someone who publicly entices many into idolatry. An enticer to idolatry may be both.
The Law of Moses likewise takes a strong and non-compassionate approach to the enticer due to the offensive service of idolatry to which the enticer seeks to draw worshipers. The crime of the enticer to idolatry was so serious and dangerous that in some cases some legal ( halakhic) requirements of due process could be relaxed in order to entrap the enticer.
In the Mishneh Torah of Maimonides the prohibition "Not to love an enticer" is listed as a negative commandment.