Genesis 49:6-7New King James Version (NKJV)
6 Let not my soul enter their council;
Let not my honor be united to their assembly;
For in their anger they slew a man,
And in their self-will they hamstrung an ox.
7 Cursed be their anger, for it is fierce;
And their wrath, for it is cruel!
I will divide them in Jacob
And scatter them in Israel.