en_tn_condensed/luk/02/45.md

When they did not find him

"When Mary and Joseph did not find Jesus"

It came about that

This phrase is used here to mark an important event in the story. If your language has a way for doing this, you could consider using it here.

in the temple

This could be translated as "in the temple courtyard" or "at the temple."

in the middle of

This does not mean the exact center. Rather, it means "among" or "together with" or "in the midst of" (UDB).

the teachers

"the religious teachers" or "those who taught people about God"

at his understanding

This could be translated as "at how much he understood" or "that he understood so much about God."

his answers

This could also be translated as "at how well he answered them" or "that he answered their questions so well."