After this Joseph was told, "Your father is ill." So he took with him his two sons, Manasseh and Ephraim.
When Jacob was told, "Your son Joseph has come to you," he summoned his strength and sat up in bed.
References for Genesis 48:2
And Jacob said to Joseph, "God Almighty appeared to me at Luz in the land of Canaan, and he blessed me,
References for Genesis 48:3
and said to me, "I am going to make you fruitful and increase your numbers; I will make of you a company of peoples, and will give this land to your offspring after you for a perpetual holding.'
Therefore your two sons, who were born to you in the land of Egypt before I came to you in Egypt, are now mine; Ephraim and Manasseh shall be mine, just as Reuben and Simeon are.
As for the offspring born to you after them, they shall be yours. They shall be recorded under the names of their brothers with regard to their inheritance.