Who was described as being "unstable as water"?
(Answer on page 10)
Here's answer to week's question
(From page 2)
In blessing his 12 sons, Jacob said of Reuben, his eldest: "Unstable as water, thou shalt not excel." Reuben lost the privilege of obtaining the birthright blessing because of transgression.
Source: Gen. 49:4, and dictionary in LDS edition of the King James Bible.