Genesis 49:2-4

Lexham English Bible

² Assemble and hear, O sons of Jacob!
    Listen to Israel your father!
³ Reuben, you are my firstborn,
    my strength, and the firstfruit of my vigor,
    excelling in rank and excelling in power.
⁴ Unstable^[a] as water, you shall not excel any longer,
    for you went up upon the bed of your father,
    then defiled it. You went up upon my couch!