zakh describes an unblemished quality in ritual materials and in persons, prayer, ways, and deeds.

The word most often characterizes persons or human conduct as free from wrongdoing or judged upright: teaching, prayer, a person, ways, and work are set in relation to transgression, violence, guilt, or uprightness. It also describes designated materials—olive oil and frankincense—in instructions concerning the lamp, incense, and bread offering.

1. Blameless persons and conduct · dominant

   In Job 33:9 the masculine singular adjective occurs in a self-description alongside being without transgression and without iniquity. In Job 16:17 it qualifies prayer where the speaker denies violence in his hands; Proverbs 16:2, Proverbs 20:11, and Proverbs 21:8 apply the same quality to ways or work in contrast with divine weighing, a youth's deeds, or a crooked and guilty way.

   Job 33:9Job 16:17Job 8:6Proverbs 16:2Proverbs 20:11Proverbs 21:8
2. Specified materials for sacred use · common

   In Exodus 27:20 and Leviticus 24:2 the masculine singular form describes beaten olive oil supplied for the light and lamp. In Exodus 30:34 and Leviticus 24:7 the feminine singular form qualifies frankincense named among spices or placed upon the row of bread.

   Exodus 27:20Exodus 30:34Leviticus 24:2Leviticus 24:7

In the Anselm Project Bible: Across these verses, the APB regularly uses "pure" for the relevant clause, whether it concerns oil, frankincense, teaching, prayer, a person, ways, or work. Because the APB is a whole-verse translation, its repeated English wording confirms the verse-level presentation but does not by itself establish finer distinctions.