en_tn/luk/02/51.md

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

"carefully remembered all these things" or "joyfully thought about all these things." A treasure is something that is very valuable or precious. Mary considered the things her son did and said to be very precious. (See: rc://en/ta/man/translate/figs-metaphor)

grow in wisdom and stature

"become more wise and strong" (See: rc://en/ta/man/translate/figs-metaphor)

increased in favor with God and people

This could be translated as "people liked him more and more, and God blessed him more and more."