What is the shortest verse in the Old Testament?

1 Chronicles 1:25 ("Eber, Peleg, Reu") is the shortest verse in the Old Testament.

https://en.wikipedia.org/wiki/Chapters_and_verses_of_the_Bible

Job 3:2 "He said"

https://en.wikipedia.org/wiki/Chapters_and_verses_of_the_Bible#Statistics

It should be noted that this will vary depending on which original source or translation is used. Also that the division into chapters and verses is not in the original sources, but was introduced in the days of the Reformation or thereabouts. For more info see Isaac Asimov's 'In The Beginning' (not science fiction, but an analysis of the start of the Book of Genesis).

Depending on which division of verses one uses, it could either be one of the aforementioned verses from Chronicles and Job, or Exodus 20:6 (and it's repetition in Deuteronomy) - rendered as two words and six letters in the original Hebrew "lo tirtzach" ("Thou shalt not murder"). Three times a year this division is followed in synagogues around the world who read the Ten Commandments with what is known in Judaism as "upper trope" (Heb. "ta'am 'elyon").