'Adopting' in the Bible

Now your two sons [Ephraim and Manasseh], who were born to you in the land of Egypt before I came to you in Egypt, are mine; Ephraim and Manasseh shall be mine [that is, adopted as my heirs and sons as surely], as Reuben and Simeon are my sons.

You also prostituted yourself with the Egyptians, your lustful neighbors [by embracing their pagan rituals], and you multiplied your obscene immorality to provoke Me to anger.