Luke 2:46
And it happened after three days that they found Him in the Temple, sitting in the middle of the [Jewish] teachers, listening to them and asking questions.
Luke 2:49
And He replied to them, "Why were you looking for me? Did you not know that I had to be in my Father's house [i.e., the Temple]?"
Luke 19:45-47
Then Jesus entered the Temple and began to drive out those who sold [things there],
John 2:14-17
There in the Temple [area] He found people selling oxen, sheep and pigeons. [i.e., for use as sacrifices]. Also cashiers were sitting there. [Note: These people exchanged foreign coins so visitors to Jerusalem could make purchases and pay taxes].