Some time ago I read a book by Reformed theologian Albertus Pieters in which he denied that there is a distinction between the Moral and Ceremonial Laws saying that the Bible makes no such distinction.
The Chafetz Chaim(A noted Rabbi) in his book on Mitzvot states that the Bible makes a distinction between two types of commandments----Mishpatim(ordinances) and Hukkim(statutes). He states that the Mishpatim(ordinances) are those commandments whose reason is obvious and the benefit of carrying them out in the world is known.eg the laws on robbery, bloodshed, respect for parents etc. He further states that the Hukkim(Statutes) on the other hand are commandments whose reason is unknown.eg the prohibition on pork, the red heifer and the goat sent off into the wilderness. All the offerings of sacrifices are in the category of Hukkim(Statutes).
Would it be correct to state that Mishpatim(ordinances) are the Moral Law and Hukkim(statutes) are the ceremonial Law??