In Alma 5:19 we find the following: "I say unto you, can ye look up to God at that day with a pure heart and clean hands? Here Alma essentially reverses the order found in Psalms 24:4: "He that hath clean hands, and a pure heart."
According to David Bokovoy, when the Book of Mormon appeared in 1830, the Western world had only a limited knowledge of the literary techniques utilized by Semitic authors. One such discovery came to light in 1955 when a scholar named Seidel published a study of what has come to be called "inverted quotations" in the Bible, and today scholars refer to such inverted quotations of earlier sources as an example of Seidel's law. The Bible contains many examples of inverted quotations. For example, in Leviticus 26:4 the Lord declared," and the land shall yield her increase, and the trees of the field shall yield their fruits." When Ezekiel later referred to this promise, he intentionally reversed its original sequence: "and the trees of the field shall yield their fruits, and the land shall yield her increase" (Ezekiel 34:27). [David Bokovoy, "Inverted Quotations in the Book of Mormon" in FARMS Update, Number 139, in Insights, October 2000, p. 2] [See the commentary on 2 Nephi 2:15]