Genesis 49:2-4

Authorized (King James) Version

² Gather yourselves together, and hear, ye sons of Jacob;
and hearken unto Israel your father.

³ Reuben, thou art my firstborn,
my might, and the beginning of my strength,
the excellency of dignity, and the excellency of power:
⁴ 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.