Ceremonial Holiness
The Lexham Bible Dictionary
Holiness, Ceremonial
Holiness, Ceremonial Traces the development of the Israelite views of holiness in the Old Testament.
The New Unger’s Bible Dictionary
Holiness, Ceremonial
HOLINESS, CEREMONIAL. Jehovah had called Israel to be “a kingdom of priests and a holy nation” (Ex. 19:6), having placed them in covenant fellowship with Himself. In this covenant relationship He established an institution of salvation, which furnished the covenant people with the means of obtaining
Nelson’s New Illustrated Bible Dictionary
Holiness, Ceremonial
HOLINESS, CEREMONIAL — a characteristic of the worship system of ancient Israel, which required that a person be ceremonially clean and pure before he could approach God. Many acts prohibited in Old Testament law were not immoral but they were considered ceremonially unclean. Ceremonial uncleanness resulted
Ecclesiastical Dictionary: Containing, in Concise Form, Information upon Ecclesiastical, Biblical, Archæological, and Historical Subjects
Ceremonial or Ceremonies.—The ceremonial is a system of rites or ceremonies enjoined by law or established by custom in religious worship. If man were a disembodied spirit, like the angels, he might worship with his soul only; but he has superadded to his spirit a body characteristic of his mortal existence.
Key passages
Eze 44:23

And they will teach my people the difference between what is holy and what is unholy, and the difference between unclean and clean they must show them.

See also
Topics & Themes