# he went back home with them

"Jesus went back home with Mary and Joseph"

# was obedient to them

"obeyed them" or "was always obeying them"

# treasured all these things in her heart

Here "heart" is a metonym for a person's mind or inner being. Alternate translation: "carefully remembered all these things" (See: [[rc://en/ta/man/jit/figs-metonymy]])