Genesis 48:18-22

And Joseph said unto his father, Not so, my father: for this is the firstborn; put thy right hand upon his head.

And his father refused, and said, I know it, my son, I know it: he also shall become a people, and he also shall be great: but truly his younger brother shall be greater than he, and his seed shall become a multitude of nations.

And he blessed them that day, saying, In thee shall Israel bless, saying, God make thee as Ephraim and as Manasseh: and he set Ephraim before Manasseh.

And Israel said unto Joseph, Behold, I die: but God shall be with you, and bring you again unto the land of your fathers.

Moreover I have given to thee one portion above thy brethren, which I took out of the hand of the Amorite with my sword and with my bow.