Genesis 49:2

And Jacob called unto his sons, and said, Gather yourselves together, that I may tell you that which shall befall you in the last days.

Reuben, thou art my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of power:

Unstable as water, thou shalt not excel; because thou wentest up to thy father's bed; then defiledst thou it: he went up to my couch.

Simeon and Levi are brethren; instruments of cruelty are in their habitations.