There are a number of verses in תנ”ך that have only three words.  I am not counting here the introductions to Psalms which sometimes comprise only two or even a single word.  I’m also not counting verses that are entirely genealogies such as the first three verses of I Chronicles.

בראשית כא:ו
וישב יצחק בגרר

בראשית מג:א
הרעב כבד בארץ

ישעיה ב:יח
והאלילים כליל יחלף