The Holiness Code is a term used in biblical criticism to refer to Leviticus chapters 17–26, and is so called due to its highly repeated use of the word Holy. It has no special traditional religious significance, and traditional Jews and Christians do not regard it as having any distinction from any other part of the Book of Leviticus. Critical biblical scholars have regarded it as a distinct unit and have noted that the style is noticeably different from the main body of Leviticus: unlike the remainder of Leviticus, the many laws of the Holiness Code are expressed very closely packed together, and very briefly. According to most versions the documentary hypothesis, the Holiness Code represents an earlier text that was edited and incorporated into the Priestly source and the Torah as a whole, although some scholars, such as Israel Knohl, believe the Holiness Code to be a later addition to the Priestly source.
This source is often abbreviated as "H". A generally accepted date is sometime in the seventh century BC and presumably originated among the priests in the Temple in Jerusalem.
The Holiness Code also uses a noticeably different choice of vocabulary, repeating phrases such as I, The LORD, am holy, I am the LORD, and I the LORD, which sanctify..., an unusually large number of times. Additionally, Leviticus 17 begins with This is the thing which the LORD hath commanded, saying.., and Leviticus 26 strongly resembles the conclusion of a law code, despite the presence of further laws afterward, such as at Leviticus 27, giving the Holiness Code the appearance of a single distinct unit.
Among evangelical Christians, there is debate about how much of this passage can be applicable today since the Levitical priesthood and animal sacrifice ended in AD 70, with the destruction of Jerusalem by the Romans. Many in these groups see references to sexuality therein and as being reiterated for emphasis elsewhere in the Bible; for example, in the Epistle to the Romans. Orthodox Jews continue many of the practices, but they generally regard precepts not in current practice as being in only temporary abeyance until a Third Temple can be rebuilt and they can be restored.