English Standard Version
And he said to them, "Why were you looking for me? Did you not know that I must be in my Father's house?"New International Version
"Why were you searching for me?" he asked. "Didn't you know I had to be in my Father's house?"Catholic Public Domain Version
And he said to them: "How is it that you were seeking me? For did you not know that it is necessary for me to be in these things which are of my Father?