# Why were you searching for me?

Jesus uses two questions to mildly rebuke his parents. Alternate translation: "You did not need to look for me."

# Did you not know ... business?

This question can be translated as a statement. Alternate translation: "You should have known ... business."

# I had to be about my Father's business

Possible meanings are "I had to do the work my Father gave me" or "I had to be in my Father's house."