“Treacherous as Water”(Gen 49.4)? The Stem פחז‎ in the Hebrew Bible

In the “blessing” of Gen 49.3-4, Reuben is censured for having violated his father Jacob’s concubine Bilhah. In this rebuke, the Hebrew uses a rare word, פחז‎, in an additionally awkward comparison: “like water.” Over the centuries the word פחז‎ appears to have been difficult to translate and therefore the simile “like water” is also difficult to understand. This is reflected in many Bible translations, but in the last decades a solution has been provided to solve this problem. In this contribution, the cultural significance of Reuben’s offence is discussed since it is not “just” a sexual offense. In addition, the meaning of the word פחז‎ in the other biblical texts is analysed, followed by a discussion of the comparison “as water.” The discussion not only clarifies the text of Gen 49.4, but also the background of several other texts in the Bible.